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study/hardware/Floppy/82077AA_FloppyControllerDatasheet.pdf Normal file
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NEC <20>PD765 - Floppy Disk Controller - 8272A
PS/2 FDC Diskette Status Register A at 3F0h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F0h PS/2 Disk Status Register A (read-only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> direction
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> write protect
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> index
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> head 1 select
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> track 0
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> step
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> second drive installed
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> interrupt pending
PS/2 FDC Diskette Status Register B at 3F1h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F1h PS/2 Disk Status Register B (read-only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> motor enable 0
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> motor enable 1
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> write enable
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> read data (toggles w/positive transition in -RD DATA)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> write data (toggles w/positive transition in WR DATA)
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> drive select
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> reserved
FDC Digital Output Register at 3F2h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> port 3F2h (write only)
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive select (0=A, 1=B, 2=floppy C, ...)
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = FDC enable, 0 = hold FDC at reset
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = DMA & I/O interface enabled (reserved PS/2)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive A motor on
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive B motor on
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive C motor on; (reserved PS/2)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive D motor on; (reserved PS/2)
- used to control drive motors, drive selection, and feature enable
- PS/2 only uses bit 0 for floppy drive select; bit 1 is reserved
- PS/2 only uses bits 5 & 4 for motor enable; bits 7&6 are reserved
- all DOR bits are cleared during controller reset
FDC Main Status Register at 3F4h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> port 3F4h (read only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> floppy drive 0 in seek mode/busy
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive 1 in seek mode/busy
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive 2 in seek mode/busy (reserved PS/2)
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive 3 in seek mode/busy (reserved PS/2)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDC read or write command in progress
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDC is in non-DMA mode
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O direction; 1 = FDC to CPU; 0 = CPU to FDC
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> data reg ready for I/O to/from CPU (request for master)
FDC Command Status Register 0 at 3F5h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Command Status Register 0 at port 3F5h
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unit selected at interrupt (0=A, 1=B, 2=...)
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> head number at interrupt (head 0 or 1)
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> not ready on read/write or SS access to head 1
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> equipment check (see note)
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> set to 1 when FDD completes a seek command
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> last command status (see below)
Bits
76 Last Command Status
00 command terminated successfully
01 command execution started but terminated abnormally
10 invalid command issued
11 command terminated abnormally due to a change in state of
the Ready Signal from the FDC (reserved on PS/2)
- equipment check can occur if FDD signals a fault or track zero is
not found after 77 steps on a recalibrate command
- PS/2 only uses bits 1-0 for drive (values are 01b and 10b)
FDC Command Status Register 1 at 3F5h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Command Status Register 1 at port 3F5h
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> FDC cannot find ID address mark (see reg 2)
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> write protect detected during write
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDC cannot find sector ID
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unused (always zero)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> over-run; FDC not serviced in reasonable time
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> data error (CRC) in ID field or data field
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unused (always zero)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> end of cylinder; sector# greater than sectors/track
- bit 0 of Status Register 1 and bit 4 of Status Register 2 are
related and mimic each other
FDC Command Status Register 2 at 3F5h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Command Status Register 2 at port 3F5h
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> missing address mark in data field
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> bad cylinder, ID not found and Cyl Id=FFh
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> scan command failed, sector not found in cylinder
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> scan command equal condition satisfied
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> wrong cylinder detected
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CRC error detected in sector data
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> sector with deleted data address mark detected
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unused (always zero)
- bit 0 of Status Register 1 and bit 4 of Status Register 2 are
related and mimic each other
FDC Command Status Register 3 at 3F5h (FDD status, all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Floppy Disk Drive Status at port 3F5h
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD unit selected status (0=A, 1=B, 2=...)
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD side head select status (0=head 0, 1=head 1)
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD two sided status signal
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD track zero status signal
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD ready status signal
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD write protect status signal
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD fault status signal
PS/2 FDC Digital Input Register at 3F7h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F7h PS/2 Digital Input Register (read only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD> high density select
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> reserved
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> diskette change
PS/2 FDC Configuration Control Register at 3F7h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F7h PS/2 Config. Control Register (write only)
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> DRC1, DRC0 (see below)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> reserved
DRC1 DRC0
0 0 500000 bit per second mode
0 1 reserved
1 0 250000 bit per second mode
1 1 reserved
- Digital Input Register is used to sense the state of the
(-diskette change) and the (-high density select) signals
- Configuration Control Register is used to set the transfer rate
FDC Programming Considerations
Three phases of command execution:
1. Command phase; commands are sent from the CPU to the FDC via
port 3F5h; bit 6 of the Status Register at 3F4h must be zero
2. Execution phase; FDC executes instruction & generates INT 6
3. Result phase; status and other information is available to CPU;
INT 6 sets bit 7 of BIOS Data Area location 40:3E which can
be polled for completion status
Example of a read operation:
1. turn disk motor on and set delay time for drive spin up
2. perform seek operation; wait for disk interrupt
3. prepare DMA chip to move data to memory
4. send read command and wait for transfer complete interrupt
5. read status information
6. turn disk motor off
Floppy Diskette Controller Operations (15 commands)
Read Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 0 0 1 1 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Read Deleted Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 0 1 1 0 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Write Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF 0 0 0 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Write Deleted Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF 0 0 1 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Read a Track D7 D6 D5 D4 D3 D2 D1 D0
(Diagnostic)
command byte 0: 0 MF SK 0 0 0 1 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Read ID D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 MF 0 0 1 0 1 0
command byte 1: ? ? ? ? ? HD US1 US0
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Format a Track D7 D6 D5 D4 D3 D2 D1 D0
(Write Sector IDs)
command byte 0: 0 MF 0 0 1 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: bytes per sector
command byte 3: sectors per track
command byte 4: gap 3 length
command byte 5: filler pattern to write in each byte
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Scan Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 0 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Scan Low or Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 1 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Scan High or Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 1 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Recalibrate D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 0 0 0 0 1 1 1
command byte 1: ? ? ? ? ? 0 US1 US0
returns nothing
Sense Interrupt D7 D6 D5 D4 D3 D2 D1 D0
Status
command byte 0: 0 0 0 0 1 0 0 0
result byte 0: status register 0
result byte 1: present cylinder number
Specify Step & D7 D6 D5 D4 D3 D2 D1 D0
Head Load
command byte 0: 0 0 0 0 0 0 1 1
command byte 1: step rate time <20> head unload time
command byte 2: <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head load time<6D><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ND
returns nothing
Sense Drive D7 D6 D5 D4 D3 D2 D1 D0
Status
command byte 0: 0 0 0 0 0 1 0 0
command byte 1: ? ? ? ? ? HD US1 US0
result byte 0: status register 3
Seek D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 0 0 0 1 1 1 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: new cylinder number
returns nothing
<20>PD765 Version D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: ? ? ? 1 0 0 0 0
result byte 0: status register 0
90h = <20>PD765B; 80h = <20>PD765A or <20>PD765A-2
Invalid Command
result byte 0: status register 0 (value of 80h)
Key to Abbreviations
HD = Head Number Selected SK = SKip Deleted-data address mark
MT = Multi-Track US0 = drive select bit 0
MF = MFM mode US1 = drive select bit 1
ND = Non-DMA mode
Head Load Time = 2 to 254ms in 2ms increments
Head Unload Time = 16 to 240ms in 16ms increments
Step Rate Time = 1 to 16ms in 1ms increments
- PS/2 systems use the 8272A diskette controller which is software
and port compatible with the NEC <20>PD765
- accessed through ports 3F0h-3F7h; NEC <20>PD765 is accessed through
ports 3F2h, 3F4h and 3F5h; the 8272A uses ports 3F0h, 3F1h,
3F2h, 3F4h, 3F5h and 3F7h
- data, command and status registers are all accessed through
port 3F5h a register stack with one address presented to the bus
- bit 7 of BIOS Data Area byte 40:3E can be polled to determine
if a disk operation has completed; this bit is set by the
interrupt handler when the operation has completed; it should
be reset before continuing on with the next FDC operation

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<BODY><XMP>:765:FDC:NEC 765:8272:floppy controller
^NEC mPD765 - Floppy Disk Controller - 8272A
% FDC Digital Output Register at 3F2h (all systems)
|7|6|5|4|3|2|1|0| port 3F2h (write only)
| | | | | | ------- floppy drive select (0=A, 1=B, 2=floppy C, ...)
| | | | | -------- 1 = FDC enable, 0 = hold FDC at reset
| | | | --------- 1 = DMA & I/O interface enabled (reserved PS/2)
| | | ---------- 1 = turn floppy drive A motor on
| | ----------- 1 = turn floppy drive B motor on
| ------------ 1 = turn floppy drive C motor on; (reserved PS/2)
------------- 1 = turn floppy drive D motor on; (reserved PS/2)
- used to control drive motors, drive selection, and feature enable
- PS/2 only uses bit 0 for floppy drive select; bit 1 is reserved
- PS/2 only uses bits 5 & 4 for motor enable; bits 7&6 are reserved
- all DOR bits are cleared during controller reset
% FDC Main Status Register at 3F4h (all systems)
|7|6|5|4|3|2|1|0| port 3F4h (read only)
| | | | | | | ----- floppy drive 0 in seek mode/busy
| | | | | | ------ floppy drive 1 in seek mode/busy
| | | | | ------- floppy drive 2 in seek mode/busy (reserved PS/2)
| | | | -------- floppy drive 3 in seek mode/busy (reserved PS/2)
| | | --------- FDC read or write command in progress
| | ---------- FDC is in non-DMA mode
| ----------- I/O direction; 1 = FDC to CPU; 0 = CPU to FDC
------------ data reg ready for I/O to/from CPU (request for master)
% FDC Command Status Register 0 at 3F5h (all systems)
|7|6|5|4|3|2|1|0| Command Status Register 0 at port 3F5h
| | | | | | ------- unit selected at interrupt (0=A, 1=B, 2=...)
| | | | | -------- head number at interrupt (head 0 or 1)
| | | | --------- not ready on read/write or SS access to head 1
| | | ---------- equipment check (see note)
| | ----------- set to 1 when FDD completes a seek command
-------------- last command status (see below)
% Bits
% 76 Last Command Status
00 command terminated successfully
01 command execution started but terminated abnormally
10 invalid command issued
11 command terminated abnormally due to a change in state of
the Ready Signal from the FDC (reserved on PS/2)
- equipment check can occur if FDD signals a fault or track zero is
not found after 77 steps on a recalibrate command
- PS/2 only uses bits 1-0 for drive (values are 01b and 10b)
% FDC Command Status Register 1 at 3F5h (all systems)
|7|6|5|4|3|2|1|0| Command Status Register 1 at port 3F5h
| | | | | | | ----- FDC cannot find ID address mark (see reg 2)
| | | | | | ------ write protect detected during write
| | | | | ------- FDC cannot find sector ID
| | | | -------- unused (always zero)
| | | --------- over-run; FDC not serviced in reasonable time
| | ---------- data error (CRC) in ID field or data field
| ----------- unused (always zero)
------------ end of cylinder; sector# greater than sectors/track
- bit 0 of Status Register 1 and bit 4 of Status Register 2 are
related and mimic each other
% FDC Command Status Register 2 at 3F5h (all systems)
|7|6|5|4|3|2|1|0| Command Status Register 2 at port 3F5h
| | | | | | | ----- missing address mark in data field
| | | | | | ------ bad cylinder, ID not found and Cyl Id=FFh
| | | | | ------- scan command failed, sector not found in cylinder
| | | | -------- scan command equal condition satisfied
| | | --------- wrong cylinder detected
| | ---------- CRC error detected in sector data
| ----------- sector with deleted data address mark detected
------------ unused (always zero)
- bit 0 of Status Register 1 and bit 4 of Status Register 2 are
related and mimic each other
% FDC Command Status Register 3 at 3F5h (FDD status, all systems)
|7|6|5|4|3|2|1|0| Floppy Disk Drive Status at port 3F5h
| | | | | | ------- FDD unit selected status (0=A, 1=B, 2=...)
| | | | | -------- FDD side head select status (0=head 0, 1=head 1)
| | | | --------- FDD two sided status signal
| | | ---------- FDD track zero status signal
| | ----------- FDD ready status signal
| ------------ FDD write protect status signal
------------- FDD fault status signal
^FDC Programming Considerations
% Three phases of command execution:
1. Command phase; commands are sent from the CPU to the FDC via
port 3F5h; bit 6 of the Status Register at 3F4h must be zero
2. Execution phase; FDC executes instruction & generates INT 6
3. Result phase; status and other information is available to CPU;
INT 6 sets bit 7 of BIOS Data Area location 40:3E which can
be polled for completion status
% Example of a read operation:
1. turn disk motor on and set delay time for drive spin up
2. perform seek operation; wait for disk interrupt
3. prepare DMA chip to move data to memory
4. send read command and wait for transfer complete interrupt
5. read status information
6. turn disk motor off
^Floppy Diskette Controller Operations (15 commands)
% Read Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 0 0 1 1 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Read Deleted Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 0 1 1 0 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Write Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF 0 0 0 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Write Deleted Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF 0 0 1 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Read a Track D7 D6 D5 D4 D3 D2 D1 D0
% (Diagnostic)
command byte 0: 0 MF SK 0 0 0 1 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Read ID D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 MF 0 0 1 0 1 0
command byte 1: ? ? ? ? ? HD US1 US0
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Format a Track D7 D6 D5 D4 D3 D2 D1 D0
% (Write Sector IDs)
command byte 0: 0 MF 0 0 1 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: bytes per sector
command byte 3: sectors per track
command byte 4: gap 3 length
command byte 5: filler pattern to write in each byte
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Scan Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 0 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Scan Low or Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 1 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Scan High or Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 1 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
% Recalibrate D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 0 0 0 0 1 1 1
command byte 1: ? ? ? ? ? 0 US1 US0
returns nothing
% Sense Interrupt D7 D6 D5 D4 D3 D2 D1 D0
% Status
command byte 0: 0 0 0 0 1 0 0 0
result byte 0: status register 0
result byte 1: present cylinder number
% Specify Step & D7 D6 D5 D4 D3 D2 D1 D0
% Head Load
command byte 0: 0 0 0 0 0 0 1 1
command byte 1: step rate time | head unload time
command byte 2: ------head load time------ ND
returns nothing
% Sense Drive D7 D6 D5 D4 D3 D2 D1 D0
% Status
command byte 0: 0 0 0 0 0 1 0 0
command byte 1: ? ? ? ? ? HD US1 US0
result byte 0: status register 3
% Seek D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 0 0 0 1 1 1 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: new cylinder number
returns nothing
% mPD765 Version D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: ? ? ? 1 0 0 0 0
result byte 0: status register 0
90h = mPD765B; 80h = mPD765A or mPD765A-2
% Invalid Command
result byte 0: status register 0 (value of 80h)
% Key to Abbreviations
HD = Head Number Selected SK = SKip Deleted-data address mark
MT = Multi-Track US0 = drive select bit 0
MF = MFM mode US1 = drive select bit 1
ND = Non-DMA mode
Head Load Time = 2 to 254ms in 2ms increments
Head Unload Time = 16 to 240ms in 16ms increments
Step Rate Time = 1 to 16ms in 1ms increments
- PS/2 systems use the 8272A diskette controller which is software
and port compatible with the NEC mPD765
- accessed through ports 3F0h-3F7h; NEC mPD765 is accessed through
ports 3F2h, 3F4h and 3F5h; the 8272A uses ports 3F0h, 3F1h,
3F2h, 3F4h, 3F5h and 3F7h
- data, command and status registers are all accessed through
port 3F5h a register stack with one address presented to the bus
- bit 7 of BIOS Data Area byte 40:3E can be polled to determine
if a disk operation has completed; this bit is set by the
interrupt handler when the operation has completed; it should
be reset before continuing on with the next FDC operation
- see ~BIOS Data Area~ ~INT TABLE~ ~INT 13~
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NEC <20>PD765 - Floppy Disk Controller - 8272A
PS/2 FDC Diskette Status Register A at 3F0h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F0h PS/2 Disk Status Register A (read-only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> direction
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> write protect
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> index
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> head 1 select
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> track 0
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> step
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> second drive installed
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> interrupt pending
PS/2 FDC Diskette Status Register B at 3F1h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F1h PS/2 Disk Status Register B (read-only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> motor enable 0
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> motor enable 1
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> write enable
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> read data (toggles w/positive transition in -RD DATA)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> write data (toggles w/positive transition in WR DATA)
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> drive select
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> reserved
FDC Digital Output Register at 3F2h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> port 3F2h (write only)
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive select (0=A, 1=B, 2=floppy C, ...)
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = FDC enable, 0 = hold FDC at reset
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = DMA & I/O interface enabled (reserved PS/2)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive A motor on
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive B motor on
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive C motor on; (reserved PS/2)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive D motor on; (reserved PS/2)
- used to control drive motors, drive selection, and feature enable
- PS/2 only uses bit 0 for floppy drive select; bit 1 is reserved
- PS/2 only uses bits 5 & 4 for motor enable; bits 7&6 are reserved
- all DOR bits are cleared during controller reset
FDC Main Status Register at 3F4h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> port 3F4h (read only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> floppy drive 0 in seek mode/busy
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive 1 in seek mode/busy
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive 2 in seek mode/busy (reserved PS/2)
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive 3 in seek mode/busy (reserved PS/2)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDC read or write command in progress
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDC is in non-DMA mode
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O direction; 1 = FDC to CPU; 0 = CPU to FDC
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> data reg ready for I/O to/from CPU (request for master)
FDC Command Status Register 0 at 3F5h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Command Status Register 0 at port 3F5h
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unit selected at interrupt (0=A, 1=B, 2=...)
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> head number at interrupt (head 0 or 1)
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> not ready on read/write or SS access to head 1
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> equipment check (see note)
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> set to 1 when FDD completes a seek command
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> last command status (see below)
Bits
76 Last Command Status
00 command terminated successfully
01 command execution started but terminated abnormally
10 invalid command issued
11 command terminated abnormally due to a change in state of
the Ready Signal from the FDC (reserved on PS/2)
- equipment check can occur if FDD signals a fault or track zero is
not found after 77 steps on a recalibrate command
- PS/2 only uses bits 1-0 for drive (values are 01b and 10b)
FDC Command Status Register 1 at 3F5h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Command Status Register 1 at port 3F5h
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> FDC cannot find ID address mark (see reg 2)
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> write protect detected during write
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDC cannot find sector ID
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unused (always zero)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> over-run; FDC not serviced in reasonable time
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> data error (CRC) in ID field or data field
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unused (always zero)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> end of cylinder; sector# greater than sectors/track
- bit 0 of Status Register 1 and bit 4 of Status Register 2 are
related and mimic each other
FDC Command Status Register 2 at 3F5h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Command Status Register 2 at port 3F5h
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> missing address mark in data field
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> bad cylinder, ID not found and Cyl Id=FFh
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> scan command failed, sector not found in cylinder
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> scan command equal condition satisfied
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> wrong cylinder detected
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CRC error detected in sector data
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> sector with deleted data address mark detected
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unused (always zero)
- bit 0 of Status Register 1 and bit 4 of Status Register 2 are
related and mimic each other
FDC Command Status Register 3 at 3F5h (FDD status, all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Floppy Disk Drive Status at port 3F5h
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD unit selected status (0=A, 1=B, 2=...)
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD side head select status (0=head 0, 1=head 1)
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD two sided status signal
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD track zero status signal
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD ready status signal
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD write protect status signal
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD fault status signal
PS/2 FDC Digital Input Register at 3F7h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F7h PS/2 Digital Input Register (read only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD> high density select
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> reserved
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> diskette change
PS/2 FDC Configuration Control Register at 3F7h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F7h PS/2 Config. Control Register (write only)
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> DRC1, DRC0 (see below)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> reserved
DRC1 DRC0
0 0 500000 bit per second mode
0 1 reserved
1 0 250000 bit per second mode
1 1 reserved
- Digital Input Register is used to sense the state of the
(-diskette change) and the (-high density select) signals
- Configuration Control Register is used to set the transfer rate
FDC Programming Considerations
Three phases of command execution:
1. Command phase; commands are sent from the CPU to the FDC via
port 3F5h; bit 6 of the Status Register at 3F4h must be zero
2. Execution phase; FDC executes instruction & generates INT 6
3. Result phase; status and other information is available to CPU;
INT 6 sets bit 7 of BIOS Data Area location 40:3E which can
be polled for completion status
Example of a read operation:
1. turn disk motor on and set delay time for drive spin up
2. perform seek operation; wait for disk interrupt
3. prepare DMA chip to move data to memory
4. send read command and wait for transfer complete interrupt
5. read status information
6. turn disk motor off
Floppy Diskette Controller Operations (15 commands)
Read Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 0 0 1 1 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Read Deleted Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 0 1 1 0 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Write Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF 0 0 0 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Write Deleted Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF 0 0 1 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Read a Track D7 D6 D5 D4 D3 D2 D1 D0
(Diagnostic)
command byte 0: 0 MF SK 0 0 0 1 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Read ID D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 MF 0 0 1 0 1 0
command byte 1: ? ? ? ? ? HD US1 US0
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Format a Track D7 D6 D5 D4 D3 D2 D1 D0
(Write Sector IDs)
command byte 0: 0 MF 0 0 1 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: bytes per sector
command byte 3: sectors per track
command byte 4: gap 3 length
command byte 5: filler pattern to write in each byte
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Scan Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 0 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Scan Low or Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 1 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Scan High or Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 1 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Recalibrate D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 0 0 0 0 1 1 1
command byte 1: ? ? ? ? ? 0 US1 US0
returns nothing
Sense Interrupt D7 D6 D5 D4 D3 D2 D1 D0
Status
command byte 0: 0 0 0 0 1 0 0 0
result byte 0: status register 0
result byte 1: present cylinder number
Specify Step & D7 D6 D5 D4 D3 D2 D1 D0
Head Load
command byte 0: 0 0 0 0 0 0 1 1
command byte 1: step rate time <20> head unload time
command byte 2: <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head load time<6D><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ND
returns nothing
Sense Drive D7 D6 D5 D4 D3 D2 D1 D0
Status
command byte 0: 0 0 0 0 0 1 0 0
command byte 1: ? ? ? ? ? HD US1 US0
result byte 0: status register 3
Seek D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 0 0 0 1 1 1 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: new cylinder number
returns nothing
<20>PD765 Version D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: ? ? ? 1 0 0 0 0
result byte 0: status register 0
90h = <20>PD765B; 80h = <20>PD765A or <20>PD765A-2
Invalid Command
result byte 0: status register 0 (value of 80h)
Key to Abbreviations
HD = Head Number Selected SK = SKip Deleted-data address mark
MT = Multi-Track US0 = drive select bit 0
MF = MFM mode US1 = drive select bit 1
ND = Non-DMA mode
Head Load Time = 2 to 254ms in 2ms increments
Head Unload Time = 16 to 240ms in 16ms increments
Step Rate Time = 1 to 16ms in 1ms increments
- PS/2 systems use the 8272A diskette controller which is software
and port compatible with the NEC <20>PD765
- accessed through ports 3F0h-3F7h; NEC <20>PD765 is accessed through
ports 3F2h, 3F4h and 3F5h; the 8272A uses ports 3F0h, 3F1h,
3F2h, 3F4h, 3F5h and 3F7h
- data, command and status registers are all accessed through
port 3F5h a register stack with one address presented to the bus
- bit 7 of BIOS Data Area byte 40:3E can be polled to determine
if a disk operation has completed; this bit is set by the
interrupt handler when the operation has completed; it should
be reset before continuing on with the next FDC operation

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These are from the Gospel according to Saint Peter:
Format Size Cyls Heads Sec/Trk FATs Sec/FAT Sec/Root Media
160K 5 1/4 40 1 8 2 ? ? FE
180K 5 1/4 40 1 9 2 ? 4 FC
320K 5 1/4 40 2 8 2 ? ? FF
360K 5 1/4 40 2 9 2 4 7 FD
1.2M 5 1/4 80 2 15 2 14 14 F9
720K 3 1/2 80 2 9 2 6 7 F9
1.44M 3 1/2 80 2 18 2 18 14 F0
2.88M 3 1/2 80 2 36 2 ? ? ?
Does anybody have the straight poop on the 2.88M variety? (I could
care less about the double-density, 5 1/4" formats.)
raster@indirect.com

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>Does anyone know how DOS generates serial-numbers for floppies?
Here are the details of the volume serial number:
The first part of the serial number is equal to the sum of the time
(seconds and hundredths of a second) and the date (month and day); The
second part of the serial number is equal to the sum of the time (hours
and minutes) and date (year), where all numbers are in hex. For
example, if the diskette is formatted at 8:32:43.65 on 7/21/1991, the
first part of the serial number will be 2B41+0715, or 3256; the second
part of the serial number will be 0820+07C7, or 0FE7.
Hope that this is of some help.
Ray

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0069)http://debs.future.easyspace.com/Programming/Hardware/FDC/floppy.html -->
<HTML><HEAD>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type>
<META content="MSHTML 5.00.3502.5390" name=GENERATOR></HEAD>
<BODY></BODY></HTML>

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// AKAI Disk Utilities - Copyright(c)1996-1999 Paul Kellett
//
// You may use any part of this code for any purpose!
//
// Version 4.1 (November 1999)
// Compiled with Borland Turbo C++ for DOS using "compact" memory model
//
//
// Background info:
//
// In the (IBM compatible) PC BIOS, the vector at interrupt 1E points to a table
// of floppy disk controller parameters. The table usually resembles the following:
//
// Byte Value Description
// ------------------------------------------------------------------
// 0 223 Specifications part 1
// 1 2 Specifications part 2
// 2 37 Motor run time
// 3 2 Block size: 0=128, 1=256, 2=512, 3=1024 bytes
// 4 18 Last sector number
// 5 27 Sector search gap
// 6 255 Data transfer length
// 7 108 Gap between sectors
// 8 246 ASCII code of format symbol
// 9 15 Head settle time
// 10 8 Speed up time
//
// The actual values vary a little depending on the PC and if Windows is running.
// You should always leave the table in the same state you found it!
//
// To adjust the table, you need to be able to call interrupts to execute BIOS
// functions. This is no problem in DOS and Windows 3.x, 95 and 98 (so long as
// your compiler actually supports interrupts) but an executable running under
// Windows NT (and probably Win2000) is not allowed direct access so a service
// or driver must be written.
#include <dos.h>
#include <stdio.h>
#define GETSEG(p) ((unsigned)(((unsigned long)((void far *)p))>>16))
#define GETOFS(p) ((unsigned)((void far *)p))
#define LO 5 //disk density
#define HI 10
#define S900 0 //sampler family
#define S1000 3
#define S3000 12
#define FORMAT 1 //mode
#define WRITE 2
#define READ 3
#define LIST 4
#define IMAGE 5
int diskfmt(int drv, int sid, int trk);
int diskread(int drv, int dens, int blk, int secs, char far *buffer);
int diskwrite(int drv, int dens, int blk, int secs, char far *buffer);
int akai2asci(int cod);
int asci2akai(int cod);
void help(int err);
union REGS reg;
struct SREGS sreg; //interrupts
struct FormatTable
{
unsigned char trk;
unsigned char sid;
unsigned char sec;
unsigned char len;
};
struct DirTable //disk table of contents
{
unsigned char name[13];
unsigned char type;
unsigned char orig;
long int length;
unsigned int start;
};
int diskfmt(int drv, int sid, int trk) //format a track
{
struct FormatTable ft[11];
int i;
for(i=0;i<10;i++)
{
ft[i].trk=trk;
ft[i].sid=sid;
ft[i].sec=i+1;
ft[i].len=3; // 1024 bytes per sector
}
reg.h.ah=5;
reg.h.al=10; // 10 sectors per track (low density doesn't seem to work)
reg.h.dh=sid;
reg.h.dl=drv;
reg.h.ch=trk;
reg.x.bx=GETOFS(ft);
sreg.es=GETSEG(ft);
int86x(0x13,&reg,&reg,&sreg);
return(reg.h.ah);
}
int diskread(int drv, int dens, int blk, int secs, char far *buffer) //read sector(s)
{
reg.h.ah=2;
reg.h.al=secs;
reg.h.dh=(blk/dens)%2;
reg.h.dl=drv;
reg.h.ch=blk/(2*dens);
reg.h.cl=1+(blk%dens);
reg.x.bx=GETOFS(buffer);
sreg.es=GETSEG(buffer);
int86x(0x13,&reg,&reg,&sreg);
return(reg.h.ah);
}
int diskwrite(int drv, int dens, int blk, int secs, char far *buffer) //write sector(s)
{
reg.h.ah=3;
reg.h.al=secs;
reg.h.dh=(blk/dens)%2;
reg.h.dl=drv;
reg.h.ch=blk/(2*dens);
reg.h.cl=1+(blk%dens);
reg.x.bx=GETOFS(buffer);
sreg.es=GETSEG(buffer);
int86x(0x13,&reg,&reg,&sreg);
return(reg.h.ah);
}
int akai2asci(int cod) //convert between ASCII and Akai character sets
{
if(cod>=0 && cod<10)
{
return(cod+48);
}
if(cod>10 && cod<37)
{
return(cod+54);
}
switch(cod)
{
case 37: return(35); // #
case 38: return(43); // +
case 39: return(45); // -
case 40: return(46); // .
default: return(32);
}
}
int asci2akai(int cod)
{
if(cod>47 && cod<58)
{
return(cod-48);
}
if(cod>64 && cod<91)
{
return(cod-54);
}
if(cod>96 && cod<123)
{
return(cod-86);
}
switch(cod)
{
case 35: return(37);
case 43: return(38);
case 45: return(39);
case 46: return(40);
default: return(10);
}
}
void main(int argc, char *argv[])
{
unsigned int oldseg, oldofs, newseg, newofs; //floppy parameter table vector
unsigned int er; //error code returned by bios functions
unsigned int drv=0; //0=A: 1=B:
unsigned int dens=HI; //density (sectors per track)
unsigned int map[1600]; //sector map
unsigned int mode=0; //see above
unsigned formode; //format as S900, S1000 or S3000 family
unsigned int type, ext, i, j, k, n=999, errcode=0;
unsigned char bufdma[10250];
unsigned char param[16], buffer[10250], label[13];
unsigned char far *ptr;
struct DirTable entry[64]; //table of contents
FILE *fl, *fp;
bufdma[1]=1;
//parse command line////////////////////////////////////////////////////////////////
if(*(argv[1])=='B' || *(argv[1])=='b')
if(*(argv[1]+1)==':') {drv=1; ++argv; argc--;} //select B: drive
if(*(argv[1])=='R' || *(argv[1])=='r')
{
mode=READ; //read file ...get file type number
if(*(argv[1]+1)>47 && *(argv[1]+1)<58) ext=(int)(*(argv[1]+1) - 48);
if(*(argv[1]+2)>47 && *(argv[1]+2)<58) ext=10 * ext + (int)(*(argv[1]+2) - 48);
if(*(argv[1]+3)>47 && *(argv[1]+3)<58) ext=10 * ext + (int)(*(argv[1]+3) - 48);
}
if(*(argv[1])=='W' || *(argv[1])=='w')
{
mode=WRITE; //write file ...get file type number
if(*(argv[1]+1)>47 && *(argv[1]+1)<58) ext=(int)(*(argv[1]+1) - 48);
if(*(argv[1]+2)>47 && *(argv[1]+2)<58) ext=10 * ext + (int)(*(argv[1]+2) - 48);
if(*(argv[1]+3)>47 && *(argv[1]+3)<58) ext=10 * ext + (int)(*(argv[1]+3) - 48);
}
if(*(argv[1])=='F' || *(argv[1])=='f')
{
mode=FORMAT; //format disk ...get sampler family
switch(*(argv[1]+1))
{
case '9': formode=S900; break;
case '1': formode=S1000; break;
default : formode=S3000;
}
}
if(*(argv[1])=='D' || *(argv[1])=='d') mode=LIST; //disk directory listing
if(*(argv[1])=='I' || *(argv[1])=='i') mode=IMAGE; //copy whole disk image
printf("\nAkai Floppy Disk Utilities v4");
printf("\nCopyright(c)1999 Paul Kellett");
printf("\nhttp://www.maxim.abel.co.uk/\n\n");
if(mode==0) //nothing on command line ...show help and terminate
{
puts(" Usage: ADISK4 [B:] d - Directory");
puts(" ADISK4 [B:] r### \"AKAINAME\" DOSNAME.EXT - Read File");
puts(" ADISK4 [B:] w### DOSNAME.EXT \"AKAINAME\" - Write File");
puts(" ADISK4 [B:] f@ \"LABEL\" - Format Disk");
puts(" ADISK4 [B:] i - Disk Image");
puts(" ");
puts(" ### = ASCII code of file type");
puts(" @ = Sampler family 9, 1 or 3");
exit(0);
}
//re-program floppy drive///////////////////////////////////////////////////////////
reg.h.ah=0x35;
reg.h.al=0x1E;
int86x(0x21,&reg,&reg,&sreg); // Read floppy parameter vector
oldseg=sreg.es;
oldofs=reg.x.bx;
for(i=0;i<16;i++) // make copy of parameter table
{
ptr=MK_FP(oldseg,oldofs+i);
param[i] = *ptr;
}
// With Microsoft C you must write to the table directly...
// (char __far *)ptr=MK_FP(oldseg,oldofs+3); *ptr=3; etc.
param[3]=3; // 1024 bytes per block
param[4]=dens; // 10 blocks per track
param[8]=0; // Don't format with ?
newseg=GETSEG(param);
newofs=GETOFS(param);
reg.h.ah=0x25;
reg.h.al=0x1E;
reg.x.dx=newofs;
sreg.ds=newseg;
int86x(0x21,&reg,&reg,&sreg); // Set vector to new parameters
reg.h.ah=0;
reg.h.dl=drv;
int86(0x13,&reg,&reg); // Reset floppy controller
if(reg.h.ah) printf("\nError %Xh setting up floppy!\n",reg.h.ah);
//format disk////////////////////////////////////////////////////////////////////
if(mode==FORMAT || mode==IMAGE)
{
if(mode==FORMAT)
{
printf("\nFormatting drive %c: for Akai ",'A'+drv);
switch(formode)
{
case S1000: printf("S1000\n"); break;
case S3000: printf("S3000\n"); break;
default: printf("S950\n");
}
i=0; //tidy up label
while(i<12 && *(argv[2]+i)) {label[i]=asci2akai(*(argv[2]+i)); i++;}
while(i<12) { label[i]=10; i++; }
er=diskfmt(drv, 0, 0); //clear 'disk changed' error
errcode=3; //assume faliure
if(er==0 || er==6)
{
printf("________________________________________");
printf("_______________________________________\r");
er=0;
for(i=0;i<80;i++)
if(diskfmt(drv, 0, i) + diskfmt(drv, 1, i))
{
printf("_"); //error - disk probably corrupt
er++;
}
else
{
printf("#");
}
for(i=0;i<2048;i++) buffer[i]=0;
if(formode==S900) //write S900 label (no entries or map)
{
for(i=0;i<12;i++) buffer[640+i]=label[i];
er+=diskwrite(drv,10,4,1,buffer);
}
if(formode==S1000)
{
for(i=0;i<64 ;i++) buffer[i*24+23]=3; //S1000 toc
for(i=0;i<4 ;i++) buffer[1537+(2*i)]=64; //S1000 map
er+=diskwrite(drv,10,0,2,buffer);
for(i=0;i<2048;i++) buffer[i]=0; //S1000 label
for(i=0;i<12 ;i++) buffer[640+i]=label[i];
buffer[652]=0; buffer[653]=0; buffer[654]=0; buffer[655]=3;
buffer[656]=0; buffer[657]=1; buffer[658]=1; buffer[659]=0;
buffer[660]=0; buffer[661]=0; buffer[662]=50; buffer[663]=9;
buffer[664]=12;buffer[665]=255; er+=diskwrite(drv,10,4,2,buffer);
}
if(formode==S3000)
{
for(i=0;i<64;i++)
{
for(j=0;j<12;j++) buffer[i*24+j]=32; // dummy S1000 toc
buffer[i*24+15]=1; buffer[i*24+23]=12;
}
buffer[16]=255; // S3000 series ID
for(i=0;i<17;i++) buffer[1537+2*i]=64; // S3000 map
er+=diskwrite(drv,10,0,2,buffer);
for(i=0;i<2048;i++) buffer[i]=0; //S3000 label
for(i=0;i<12;i++) buffer[640+i]=label[i];
buffer[652]=0 ;buffer[653]=0 ;buffer[654]=0 ;buffer[655]=12;
buffer[656]=0 ;buffer[657]=1 ;buffer[658]=1 ;buffer[659]=0 ;
buffer[660]=0 ;buffer[661]=0 ;buffer[662]=50;buffer[663]=9 ;
buffer[664]=12;buffer[665]=255; er+=diskwrite(drv,10,4,2,buffer);
}
if(er==0) errcode=0;
}
}
else //copy whole disk image
{
if((fp=fopen("adisk4.img","wb"))==NULL)
{
errcode=4;
}
else
{
printf("\nSaving disk image\n");
printf("________________________________________");
printf("_______________________________________\r");
k=0;
for(i=0;i<160;i++)
{
er=diskread(drv,dens,i*10,10,buffer); //read 10 sectors at once for speed
if(er!=0) er=diskread(drv,dens,i*10,10,buffer); //and try again if error
if(er!=0) er=diskread(drv,dens,i*10,10,buffer);
for(j=0;j<9216;j++) fputc(buffer[j],fp);
er=diskread(drv,dens,9+i*10,1,buffer); //for some reason 10th sector
if(er!=0) er=diskread(drv,dens,9+i*10,1,buffer); //may be corrupt so read again
if(er!=0) er=diskread(drv,dens,9+i*10,1,buffer);
for(j=0;j<1024;j++) fputc(buffer[j],fp);
k++; if(k==2) { printf("#"); k=0; }
}
fclose(fp);
}
}
}
else //get sector map and table of contents for file transfer...
{
reread:
er=diskread(drv,dens,dens-1,1,buffer); //debugging: if(er)help(er);
if(er) //try reading disk
{
switch (er)
{
case 2:
case 4: if(dens==HI)
{
dens=LO; goto reread; //if HI fails, try LO else not Akai
}
else
{
printf("Disk in drive %c: is not Akai format!",'A'+drv);
}
break;
case 6: goto reread; // clear disk change message
default: help(er); //doesn't look like it, but program exits here!
}
}
else
{
er=diskread(drv,dens,3,2,buffer); //read 5 sectors (in 2 chunks as 5th gets corrupted!)
if(er){printf("\nMap: "); help(er);}
for(i=0;i<2048;i++) buffer[3072+i]=buffer[i];
diskread(drv,dens,0,3,buffer);
if(dens==LO)
{ // Get sector map
for(i=0;i<800;i++)
{
map[i]=buffer[1536+2*i]+256*buffer[1537+2*i];
}
for(i=800;i<1600;i++)map[i]=1; // make space not on disk unavailable
for(i=0;i<12;i++) label[i]=akai2asci(buffer[3136+i]); label[12]=0;
label[12]=0; //get label
}
else
{
for(i=0;i<1600;i++)
{
map[i]=buffer[1536+2*i]+256*buffer[1537+2*i];
}
for(i=0;i<12;i++) label[i]=akai2asci(buffer[4736+i]); label[12]=0;
}
if(buffer[22]==0 && buffer[23]==0) type=S900; else type=S1000;
if(buffer[16]==255) // S3000 series
{
er=diskread(drv,dens,5,5,buffer); //read S3000 TOC
if(er){printf("\nS3000: "); help(er);}
type=S3000;
}
for(i=0;i<64;i++) // Read 64 entries
{
if(type==S900)
{
for(j=0;j<12;j++) entry[i].name[j]=buffer[i*24+j];
entry[i].name[10]=32; entry[i].name[11]=32;
}
else
for(j=0;j<12;j++) entry[i].name[j]=akai2asci(buffer[i*24+j]);
entry[i].name[12]=0;
entry[i].orig=entry[i].type=buffer[i*24+16];
entry[i].length=buffer[i*24+18]+256*buffer[i*24+19];
entry[i].length=buffer[i*24+17]+256*entry[i].length;
entry[i].start=buffer[i*24+20]+256L*buffer[i*24+21];
}
if(mode==READ) ///////////////////////////
{
i=0;
while(i<64 && n==999) //look for matching name & ext
{
if(entry[i].type==ext) //for wanted type and name...
{
k=0; j=0;
while(j<12 && *(argv[2]+j))
{
if(*(argv[2]+j)==entry[i].name[j]) k++;
if(*(argv[2]+j)==(entry[i].name[j]+32) && entry[i].name[j]>64) k++;
j++;
}
while(j<12)
{
if(entry[i].name[j]==32) k++;
j++;
}
if(k==12) n=i; //found complete match for filename
}
i++;
}
if(n==999)
{
errcode=5;
}
else
{
if((fp=fopen(argv[3],"wb"))==NULL)
{
errcode=4;
}
else
{
printf("Reading \"%s\"\n",argv[2]);
while(entry[n].length>1024)
{
diskread(drv, dens, entry[n].start, 1, buffer);
entry[n].start=map[entry[n].start];
entry[n].length-=1024;
for(i=0;i<1024;i++) fputc(buffer[i],fp);
}
diskread(drv, dens, entry[n].start, 1, buffer);
for(i=0;i<entry[n].length;i++) fputc(buffer[i],fp);
fclose(fp);
}
}
}
if(mode==WRITE) //////////////////////////
{
i=0;
while(i<64 && n==999) //look for matching name & ext
{
if(entry[i].type==ext) //for wanted type and name...
{
k=0; j=0;
while(j<12 && *(argv[3]+j))
{
if(*(argv[3]+j)==entry[i].name[j]) k++;
if(*(argv[3]+j)==(entry[i].name[j]+32) && entry[i].name[j]>64) k++;
j++;
}
while(j<12)
{
if(entry[i].name[j]==32) k++;
j++;
}
if(k==12) //found complete match
{
n=i;
printf("Deleting %s\n",entry[n].name);
}
}
i++;
}
if(n==999) //no match, use first free slot
{
i=0; while(i<64 && entry[i].type) i++;
if(i<64) n=i;
}
if(n==999)
{
errcode=5;
}
else //found slot...
{
if((fp=fopen(argv[2],"rb"))==NULL)
{
errcode=4;
}
else
{
printf("Writing %s to \"%s\"\n",argv[2],argv[3]);
//while(feof(fp)==0)...
//write file!!
fclose(fp);
}
//write TOC (deletes entry if file not found)
}
}
}
}
reg.h.ah=0x25;
reg.h.al=0x1E;
reg.x.dx=oldofs;
sreg.ds=oldseg;
int86x(0x21,&reg,&reg,&sreg); //restore old floppy parameter vector
reg.h.ah=0;
reg.h.dl=drv;
int86(0x13,&reg,&reg); //reset controller
if(reg.h.ah) printf("\nError %Xh resettingfloppy!\n",reg.h.ah);
diskread(drv,18,0,1,buffer); //switch light off
//output results to log file//////////////////////////////////////////////////////
fl=fopen("adisk4.log","w");
if(mode==LIST && errcode==0) //directory listing
{
fprintf(fl,"Akai ");
switch(type)
{
case S1000: fprintf(fl,"S1000 "); break;
case S3000: fprintf(fl,"S3000 "); break;
default: fprintf(fl,"S900 ");
}
if(dens==LO) fprintf(fl,"LOW"); else fprintf(fl,"HIGH");
fprintf(fl," DENSITY \"%s\"\n", label);
k=0;
for(i=0;i<64;i++)
if(entry[i].type)
{
fprintf(fl,"%s\t%d\t%ld\n", entry[i].name, entry[i].type, entry[i].length);
printf("%s\t%d\t", entry[i].name, entry[i].type);
k++;
if(k==3) { printf("\n"); k=0; }
}
printf("\n");
}
else //success or faliure message
{
switch(errcode)
{
case 1: fprintf(fl,"No Akai disk found!\n"); break;
case 2: fprintf(fl,"Disk is write protected!\n"); break;
case 3: fprintf(fl,"Disk Error!\n"); break;
case 4: fprintf(fl,"File Error!\n"); break;
case 5: fprintf(fl,"File not found!\n"); break;
default: fprintf(fl,"Finished!\n"); break;
}
}
fclose(fl);
}
void help(int err) //error messages
{
switch(err)
{
case 1: printf("\nInvalid command!\n"); break;
case 2: printf("\nAddress not found!\n"); break;
case 3: printf("\nDisk write protected!\n"); break;
case 4: printf("\nSector not found!\n"); break;
case 5: printf("\nReset failed!\n"); break;
case 6: printf("\nDisk changed!\n"); break;
case 7: printf("\nBad parameter table!\n"); break;
case 8: printf("\nDMA overrun!\n"); break;
case 9: printf("\nDMA across 64k boundary!\n"); break;
case 0x0A: printf("\nBad sector!\n"); break;
case 0x0B: printf("\nBad track!\n"); break;
case 0x0C: printf("\nMedia type not found!\n"); break;
case 0x0D: printf("\nBad number of sectors!\n"); break;
case 0x10: printf("\nUncorrectable read error!\n"); break;
case 0x11: printf("\nCorrected read error!\n"); break;
case 0x20: printf("\nController faliure!\n"); break;
case 0x40: printf("\nTrack not found!\n"); break;
case 0x80: printf("\nNo disk!\n"); break;
case 0xAA: printf("\nFloppy not ready!\n"); break;
case 0xBB: printf("\nUndefined error!\n"); break;
case 0xCC: printf("\nWrite fault!\n"); break;
case 0xE0: printf("\nStatus error!\n"); break;
case 0xFF: printf("\nNo Disk!\n"); break;
case 9999: puts("** Copyright (c)1999 Paul Kellett - http://www.maxim.abel.co.uk **");
}
}

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@@ -0,0 +1,486 @@
<20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD> i8272. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˻
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<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ
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ॣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20> ॣ<><E0A5A3><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> (Main Status Register)
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<EFBFBD><EFBFBD> <20>६<EFBFBD>. <20><>१ ॣ<><E0A5A3><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢫<EFBFBD><E2A2AB><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20>ᥬ
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>७<EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD>ࠬ 8272, <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢫<EFBFBD><E2A2AB><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>묨 <20> <20><>᪮<EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ⮫쪮 <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0>. <20><><EFBFBD> <20>롮<EFBFBD><EBA1AE> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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ॣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>, <20><><EFBFBD> <20>0=1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><>ଠ<EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>:
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> RQM <20> DIO <20> NDM <20> CB <20> D3B <20> D2B <20> D1B <20> D0B <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> DB7 <20> DB6 <20> DB5 <20> DB4 <20> DB3 <20> DB2 <20> DB1 <20> DB0 <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20><><EFBFBD>ᠭ<EFBFBD><E1A0AD> ࠧ<>冷<EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>:
RQM - Request For Master
<20><><EFBFBD><EFBFBD>ନ<EFBFBD><E0ACA8><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><>⮢<EFBFBD><E2AEA2><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>묨 <20><> 設<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
RQM = 1 - <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>⮢.
DIO - Data Input/Output
<20><><EFBFBD><EFBFBD>ନ<EFBFBD><E0ACA8><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뫪<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:
DIO = 1 - <20><><EFBFBD>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뫪<EFBFBD> - <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (Read),
DIO = 0 - <20><><EFBFBD>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뫪<EFBFBD> - <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (Write).
NDM - Non DMA Mode
<20> ०<><E0A5A6><EFBFBD> <20><>-<2D><><EFBFBD> <20><><EFBFBD> NDM = 0 <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0>, <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD> 䠧<> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
CB - FDC Busy
<20>᫨ <20><><EFBFBD> CB = 1, <20><><EFBFBD> <20><><EFBFBD><EFBFBD>砥<EFBFBD>, <20><><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> -
<20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD>/<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
DB3..DB0 - Drive n Busy
<20><><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 4-<2D> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD><E2A5AB>. <20>᫨
ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> <20><><EFBFBD><EFBFBD> = 1, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> ᮮ⢥<E1AEAE><E2A2A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>饣<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>饥 <20>६<EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Seek.
<20><>饥 <20><><EFBFBD>ᠭ<EFBFBD><E1A0AD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>.
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20> <20><><EFBFBD>⥬<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> 8272 <20>室<EFBFBD><E5AEA4> 15 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⭮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뫪<EFBFBD><EBABAA> <20><> 設<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ॣ<><E0A5A3><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⠪<><E2A0AA> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 㤮<><E3A4AE><EFBFBD> <20>।<EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>饩 <20><> 3-<2D> 䠧:
* <20><><EFBFBD><EFBFBD> <20>ਪ<EFBFBD><E0A8AA><EFBFBD> - <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>ਭ<EFBFBD><E0A8AD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫쭮<E2A5AB><ECADAE><EFBFBD>
<20><><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD> <20><><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
* <20><><EFBFBD><EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
* <20><><EFBFBD><EFBFBD> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><>᫥
<20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0><EFBFBD>.
<20><> 䠧<><E4A0A7> <20>ਪ<EFBFBD><E0A8AA><EFBFBD> <20> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>। <20><>।<EFBFBD>祩 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>/<2F> ॣ<><E0A5A3><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD> RQM <20> DIO ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> 1 <20>
0 ᮮ⢥<E1AEAE><E2A2A5>⢥<EFBFBD><E2A2A5><EFBFBD> <20><>। ⥬, <20><><EFBFBD> <20><><EFBFBD>।<EFBFBD><E0A5A4><EFBFBD> <20><><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20><>।<EFBFBD><E0A5A4> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>.
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><><EFA2AB><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⮢묨, <20><><EFBFBD>⮬<EFBFBD> <20><><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0>
<EFBFBD> <20>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><>। <20><><EFBFBD><EFBFBD><EFBFBD>뫪<EFBFBD><EBABAA> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>. <20><>
䠧<EFBFBD> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> RQM <20> DIO <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> 1 <20><>। <20>⥭<EFBFBD><E2A5AD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>. <20>⬥⨬, <20><><EFBFBD> <20>⥭<EFBFBD><E2A5AD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><>।
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뫪<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD> ⮫쪮 <20><> 䠧<><E4A0A7> <20>ਪ<EFBFBD><E0A8AA><EFBFBD> <20> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><> 䠧<> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><> <20>㦭<EFBFBD>. <20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>
<EFBFBD><EFBFBD>室<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ०<><E0A5A6><EFBFBD> NON DMA (<28><>-<2D><><EFBFBD>), <20><><EFBFBD><EFA2AB><EFBFBD><EFBFBD> <20><><EFBFBD>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>
<EFBFBD>⥭<EFBFBD><EFBFBD> <20> <20><>᪠ ᮯ஢<E1AEAF><E0AEA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFA2AB><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> INT=1. <20><><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD> (RD=0), ᨣ<><E1A8A3><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD>뤠<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 設<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD>ਬ<EFBFBD><E0A8AC>, <20>᫨ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>㦨<EFBFBD><E3A6A8><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>筮 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 13 <20><>ᥪ. <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>⭮<EFBFBD><E2ADAE><EFBFBD>), <20><>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>訢<EFBFBD><E8A8A2><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20> <20><><EFBFBD> D7 (RQM) ᮮ⢥<E1AEAE><E2A2A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>筮 ᨣ<><E1A8A3><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> WR=0
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>.
<20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD> <20> ०<><E0A5A6><EFBFBD> DMA (<28><><EFBFBD>), <20><> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20><> 䠧<>
<EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20> <20>⮬ <20><><EFBFBD>砥 <20>뤠<EFBFBD><EBA4A0> ᨣ<><E1A8A3><EFBFBD> DRQ
(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>) <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFA2AB><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>।<EFBFBD><E0A5A4><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD> <20>⢥砥<E2A2A5>
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>⢥ত<E2A2A5><E0A6A4><EFBFBD><EFBFBD> <20><><EFBFBD> DACK=0 <20> RD=0. <20><><EFBFBD> <20><><EFBFBD><EFA2AB><EFBFBD><EFBFBD>
ᨣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> DACK <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> DRQ. <20><><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ᨣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> RD <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> WR=0.
<20><> <20><><EFBFBD><EFBFBD>砭<EFBFBD><E7A0AD> 䠧<> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD> <20><><EFBFBD><EFA2AB><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> <20><> - <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>)
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>饥 <20><>砫<EFBFBD> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD> <20>⥭<EFBFBD><E2A5AD>
<EFBFBD><EFBFBD>ࢮ<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD>.
<20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ભ<EFBFBD><E0AAAD><EFBFBD>, <20><><EFBFBD> <20><> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>, 㪠<><E3AAA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>
⠡<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>⠭<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஬. <20><><EFBFBD>ਬ<EFBFBD><E0A8AC>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> 7 <20><><EFBFBD><EFBFBD> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD> 7 <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>⠭<EFBFBD> <20> <20><><EFBFBD>浪<EFBFBD>,
㪠<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD> <20>ᯥ譮<E1AFA5><E8ADAE> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>樨. <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ਬ<EFBFBD><EFBFBD> ᫥<><E1ABA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD> <20><><EFBFBD>, <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>⠭<EFBFBD> <20><><EFBFBD> 7 <20><><EFBFBD><EFBFBD>
१<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>᫥ <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD>.
<20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> 8272 ᮤ<>ন<EFBFBD> 5 ॣ<><E0A5A3><EFBFBD>஢ <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>: <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> (Main Status Register) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0-ST3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> (<28><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>) <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>⠭ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஬ <20>
<EFBFBD><EFBFBD> <20>६<EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ST0-ST3 <20><><EFBFBD><EFBFBD>㯭<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⮫쪮 <20><> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>⠭<EFBFBD> <20><> <20><>᫥ <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ன <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⭠<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD>।<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, ᪮<>쪮 <20> <20><><EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>⠭<EFBFBD>.
<20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><> 䠧<> <20>ਪ<EFBFBD><E0A8AA><EFBFBD> <20> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫥<><E1ABA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD>浪<EFBFBD>, 㪠<><E3AAA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ⠡<><E2A0A1><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫쭮<E2A5AB>⥩ <20><> <20><><EFBFBD><EFBFBD>᪠<EFBFBD><E1AAA0><EFBFBD><EFBFBD>. <20><>᫥ <20><><EFBFBD><EFBFBD>祭<EFBFBD><E7A5AD>
<EFBFBD><EFBFBD>᫥<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⮬<EFBFBD><E2AEAC><EFBFBD><EFBFBD><EFBFBD>᪨ <20><>稭<EFBFBD><E7A8AD><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>室<EFBFBD> <20> 䠧<> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><>᫥ ⮣<>, <20><><EFBFBD> <20><> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD>᫥<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD>⠥<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD><EFBFBD> <20> <20><>⮢ <20>
<EFBFBD><EFBFBD>ࠡ<EFBFBD>⪥ ᫥<><E1ABA5><EFBFBD>饩 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20>४<EFBFBD><E0A5AA>饭<EFBFBD> ⮫쪮 <20><><EFBFBD><EFBFBD>祩
ᨣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>=1. <20><><EFBFBD> 㤮<><E3A4AE><EFBFBD><EFBFBD> <20>।<EFBFBD>⢮ <20><><EFBFBD> "<22>ਢ<EFBFBD><E0A8A2>祭<EFBFBD><E7A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>᪨<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><>᫥ <20><>।<EFBFBD><E0A5A4><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Specify, 設<> <20>롮<EFBFBD><EBA1AE> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>
<EFBFBD><EFBFBD>稭<EFBFBD><EFBFBD><EFBFBD> <20><>⮬<EFBFBD><E2AEAC><EFBFBD><EFBFBD><EFBFBD>᪨ ᪠<><E1AAA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD><EFBFBD> <20> <20>஬<EFBFBD><E0AEAC><EFBFBD>⪠<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28> ⠪<><E2A0AA>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᠬ<EFBFBD> 蠣<> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Seek). <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD>訢<EFBFBD><E8A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>
ᨣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>⮢<EFBFBD><E2AEA2><EFBFBD><EFBFBD><EFBFBD> Ready <20><><EFBFBD><EFBFBD> 4-<2D> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD><E2A5AB>. <20>᫨ ᨣ<><E1A8A3><EFBFBD> Ready <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
᢮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> (<28><><EFBFBD>筮 <20><>-<2D><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>ન <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>), <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>।<EFBFBD>祩 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Sense Interrupt Status
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0 <20> <20><> <20><><EFBFBD><EFBFBD> NR (Not Ready) ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0
<EFBFBD><EFBFBD>।<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>.
<20><><EFBFBD>ᠭ<EFBFBD><E1A0AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 8272.
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><> 䠧<> <20>ਪ<EFBFBD><E0A8AA><EFBFBD> <20><>। <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>訢<EFBFBD><E8A8A2><EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> 8272. <20><><EFBFBD> <20>⮬ <20><><EFBFBD><EFBFBD> DIO (D6) <20> RQM (D7) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> 0 <20> 1
ᮮ⢥<EFBFBD><EFBFBD>⢥<EFBFBD><EFBFBD><EFBFBD> <20><>। <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>. <20><>砫<EFBFBD> 䠧<>
<EFBFBD>믮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>뢠<EFBFBD><EBA2A0> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><>⮢ <20> 1 <20> 0 ᮮ⢥<E1AEAE><E2A2A5>⢥<EFBFBD><E2A2A5><EFBFBD>.
Read Data <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⮩ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫쭮<E2A5AB><ECADAE><EFBFBD> <20><> 9
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><>. ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>). <20><>᫥ <20><><EFBFBD><EFBFBD>祭<EFBFBD><E7A5AD> <20>⮩ <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫쭮<E2A5AB><ECADAE><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>
<EFBFBD>뤠<EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>孮<EFBFBD><E5ADAE><EFBFBD> <20><>᪠ (<28>᫨ <20><><EFBFBD> <20>⢥<EFBFBD><E2A2A5><EFBFBD><EFBFBD>),
<EFBFBD><EFBFBD>ࠡ<EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Specify) <20>
<EFBFBD><EFBFBD>稭<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>᭮<EFBFBD> <20><>⪨ ᥪ<><E1A5AA><EFBFBD><EFBFBD>, <20><>᫥ 祣<> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD> ⥪<>騩 <20><><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> ("R"), <20>࠭<EFBFBD>騩<EFBFBD><E9A8A9> <20>
ॣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IDR ᮢ<><E1AEA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஬ ᥪ<><E1A5AA><EFBFBD><EFBFBD>, <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD> <20> <20><>᪠, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>
<EFBFBD><EFBFBD>稭<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫쭮, <20><><EFBFBD><EFBFBD> <20><>
<EFBFBD><EFBFBD><EFBFBD>⮬, <20>뤠<EFBFBD><EBA4A0><EFBFBD><EFBFBD> <20><> <20><> 設<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><>᫥ <20><><EFBFBD><EFBFBD>砭<EFBFBD><E7A0AD> <20>⥭<EFBFBD><E2A5AD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD>६<EFBFBD><E0A5AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 1 <20><><EFBFBD><EFBFBD><EFBFBD>
ᥪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><>稭<EFBFBD><E7A8AD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> ᫥<><E1ABA5><EFBFBD>饣<EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᥪ<EFBFBD><E1A5AA>୮<EFBFBD><E0ADAE>. <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20>४<EFBFBD><E0A5AA>饭<EFBFBD> <20><><EFBFBD><EFBFBD>祩
ᨣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> TC (Terminal Count - <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>). <20><>᫥ <20>ਭ<EFBFBD><E0A8AD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> <20><>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD> <20>४<EFBFBD><E0A5AA>頥<EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD> <20><> 設<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⥪<>饣<EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD>⮢ CRC-<2D><><EFBFBD><EFBFBD>஫<EFBFBD>, <20><>᫥ 祣<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD>४<EFBFBD><EFBFBD>頥<EFBFBD><EFBFBD><EFBFBD>.
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ <20><><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD>祭<EFBFBD><E7A5AD> <20><>⮢ MT,
MFM <20> N, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஦<EFBFBD><E0AEA6><EFBFBD><EFBFBD><EFBFBD> (multitrack) ०<><E0A5A6> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>,
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>騩 <20><><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>஭ (<28><>஦<EFBFBD><E0AEA6>) <20><>᪠. <20> <20>⮬
<EFBFBD><EFBFBD><EFBFBD>砥 <20><><EFBFBD> 㪠<><E3AAA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 樫<><E6A8AB><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD> <20><><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, <20><>稭<EFBFBD><E7A8AD> <20> ᥪ<><E1A5AA><EFBFBD><EFBFBD>
1 <20><><EFBFBD>஭<EFBFBD> 0 <20> <20><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD> ᥪ<><E1A5AA>஬ <20><><EFBFBD>஭<EFBFBD> 1. <20><><EFBFBD><EFBFBD>⨬, <20><><EFBFBD> <20><><EFBFBD><EFBFBD>
०<EFBFBD><EFBFBD> <20>⭮<EFBFBD><E2ADAE><EFBFBD><EFBFBD><EFBFBD> ⮫쪮 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 樫<><E6A8AB><EFBFBD><EFBFBD><EFBFBD>.
<20> <20><><EFBFBD>砥 N=0 <20><><EFBFBD>祭<EFBFBD><E7A5AD> DTL <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ࠪ⮢<E0A0AA><E2AEA2><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD>. <20>᫨ DTL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>⨭<EFBFBD><E2A8AD><EFBFBD><EFBFBD>
ࠧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><>᫥ <20><>।<EFBFBD><E0A5A4><EFBFBD> DTL <20><><EFBFBD><EFBFBD> <20><> <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD> 設<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> ᥪ<><E1A5AA><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD>⮢
CRC<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD> <20>, <20>᫨ <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᥪ<EFBFBD><E1A5AA>୮<EFBFBD>
<EFBFBD>⥭<EFBFBD><EFBFBD>. <20>᫨ N > 0, <20><> <20><><EFBFBD>祭<EFBFBD><E7A5AD> DTL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> 0FFH.
<20><>᫥ <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><> <20>⢮<EFBFBD><E2A2AE><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>孮<EFBFBD><EFBFBD><EFBFBD> <20><>᪠ <20><> <20><><EFBFBD><EFBFBD>祭<EFBFBD><E7A5AD> <20><><EFBFBD><EFBFBD>ࢠ<EFBFBD><E0A2A0> <20>६<EFBFBD><E0A5AC><EFBFBD>, 㪠<><E3AAA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Specify. <20><><EFBFBD>⮬<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫<EFBFBD><E2A5AB>묨 <20><><EFBFBD><EFBFBD>묨 <20><><EFBFBD><EFBFBD>饭<EFBFBD>ﬨ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD>⠥<EFBFBD><EFBFBD><EFBFBD> <20>ਦ<EFBFBD>⮩ <20> <20><><EFBFBD><EFBFBD><EFBFBD>孮<EFBFBD><E5ADAE><EFBFBD> <20><>᪠.
<20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD>ன ࠧ <20><><EFBFBD><EFBFBD><EFBFBD>㦨<EFBFBD><E3A6A8><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20><><EFBFBD><EFBFBD><EFBFBD>㦨<EFBFBD>
<EFBFBD>ࠢ<EFBFBD><EFBFBD>쭮<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> R), <20><> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> ND (No Data)
<EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST1 <20> <20><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0 ⠪<><E2A0AA>
<EFBFBD><EFBFBD>⠭<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> D7 <20> D6 <20> 0 <20> 1 ᮮ⢥<E1AEAE><E2A2A5>⢥<EFBFBD><E2A2A5><EFBFBD>).
<20><>᫥ <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>,
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD> <20>ந<EFBFBD><E0AEA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CRC-<2D><><EFBFBD><EFBFBD>஫<EFBFBD> <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD> <20><><EFBFBD>⮢. <20>᫨ <20><><EFBFBD><EFBFBD><EFBFBD>㦥<EFBFBD><E3A6A5> <20>訡<EFBFBD><E8A8A1>
CRC <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> DE (Data
Error) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST1, <20>᫨ <20><> <20>訡<EFBFBD><E8A8A1> <20><><EFBFBD><EFBFBD><EFBFBD>㦥<EFBFBD><E3A6A5> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>,
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> DD (Data error in Data field) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST1. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> D7 <20> D6 <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0 <20> 0 <20> 1
ᮮ⢥<EFBFBD><EFBFBD>⢥<EFBFBD><EFBFBD><EFBFBD>, <20> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD><E8A0A5><EFBFBD>.
<20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>砥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ<EFBFBD> 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20>᫨ <20><><EFBFBD> SK
(Skip - <20><><EFBFBD> D5 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>) <20><> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> CM
(Control Mark) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST2 <20> <20><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>᫥ <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ᥪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>᫨ <20><> <20><><EFBFBD> SK=1, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>ய<EFBFBD>᪠<EFBFBD><E1AAA0> <20><><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD> <20> <20><>稭<EFBFBD><E7A8AD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD> ᫥<><E1ABA5><EFBFBD>騩.
<20><> <20>६<EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>㦨<EFBFBD><E3A6A8><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><> ०<>
1 ࠧ<> <20> 27 <20><>ᥪ. <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>୮<EFBFBD> <20><><EFBFBD>⭮<EFBFBD><E2ADAE><EFBFBD> <20> 13 <20><>ᥪ. - <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD>⨢<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>砥 <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> OR (Over Run) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST1 <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><>᫥ <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20>⥭<EFBFBD><E2A5AD> (<28><><EFBFBD> ⠪<><E2A0AA> <20>⭮<EFBFBD><E2ADAE><EFBFBD><EFBFBD><EFBFBD> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>) <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0><EFBFBD>, <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD>
C-H-R-H) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD>祭<EFBFBD><E7A5AD> <20><>⮢ <20><> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
Write Data <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⮩ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫쭮<E2A5AB><ECADAE><EFBFBD>
<EFBFBD><EFBFBD> 9 <20><><EFBFBD><EFBFBD> (<28><>. ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>). <20><>᫥ <20><><EFBFBD><EFBFBD>祭<EFBFBD><E7A5AD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD> <20>뤠<EFBFBD><EBA4A0> ᨣ<><E1A8A3><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>孮<EFBFBD><E5ADAE><EFBFBD> <20><>᪠ (<28>᫨ <20><><EFBFBD> <20>뫠
<EFBFBD>⢥<EFBFBD><EFBFBD><EFBFBD><EFBFBD>) <20> <20><>ࠡ<EFBFBD><E0A0A1>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD>প<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Specify <20> <20><>稭<EFBFBD><E7A8AD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>. <20>᫨ ⥪<>騩 <20><><EFBFBD><EFBFBD><EFBFBD>
ᥪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> ("R") <20>࠭<EFBFBD>騩<EFBFBD><E9A8A9> <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> IDR, ᮢ<><E1AEA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஬ ᥪ<><E1A5AA><EFBFBD><EFBFBD>,
<EFBFBD><EFBFBD><EFBFBD>⠭<EFBFBD><EFBFBD><EFBFBD> <20> <20><>᪠ <20><> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫쭮,
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD>⮬, <20><><EFBFBD><EFBFBD><EFBFBD>訢<EFBFBD><E8A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 設<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0>
<EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>. <20><>᫥ <20><><EFBFBD><EFBFBD>砭<EFBFBD><E7A0AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⥪<>騩 <20><><EFBFBD><EFBFBD><EFBFBD>
ᥪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 㢥<><E3A2A5>稢<EFBFBD><E7A8A2><EFBFBD><EFBFBD><EFBFBD> <20><> 1 <20> <20>ந<EFBFBD><E0AEA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫥<><E1ABA5><EFBFBD>饣<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᥪ<EFBFBD><E1A5AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD> <20><><EFBFBD>, <20><><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> <20><> (<28><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>). <20><><EFBFBD> <20><><EFBFBD><EFBFBD>㯫<EFBFBD><E3AFAB><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>
<EFBFBD>த<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ⥪<>騩 ᥪ<><E1A5AA><EFBFBD> <20><> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>
<EFBFBD>ਭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> <20><> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20><>⠢襥<E2A0A2><E8A5A5> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>ﬨ.
<20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20> <20>ந<EFBFBD><E0AEA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
CRC-<2D><><EFBFBD><EFBFBD>஫<EFBFBD> <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD> <20><><EFBFBD><EFBFBD>. <20>᫨ <20><> <20><><EFBFBD><EFBFBD><EFBFBD>㦨<EFBFBD><E3A6A8><EFBFBD><EFBFBD> <20>訡<EFBFBD><E8A8A1> CRC <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>
ᥪ<EFBFBD><EFBFBD>஢, <20><> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> DE (Data Error) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST1 <20> <20><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0 <20><><EFBFBD><EFBFBD> D7 <20> D6 <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> 0 <20> 1
ᮮ⢥<EFBFBD><EFBFBD>⢥<EFBFBD><EFBFBD><EFBFBD>).
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>筠 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>᫥<EFBFBD><EFBFBD> <20><><EFBFBD> <20><>ࠪ<EFBFBD><E0A0AA><EFBFBD><EFBFBD><EFBFBD>⨪<EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
* <20><><EFBFBD><EFBFBD> EN (ENd of cylinder).
* <20><><EFBFBD><EFBFBD> ND (No Data).
* <20><>㧠 <20><> <20>⢮<EFBFBD><E2A2AE> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> HUT.
* <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0><EFBFBD>, <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>᫨ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0>
<20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
* <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD> DTL, <20><><EFBFBD><EFBFBD><EFBFBD> N=0 <20><><EFBFBD> N>0.
<20> ०<><E0A5A6><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>室<EFBFBD><EFBFBD><EFBFBD> <20><> ०<> 1 ࠧ<> <20> 31 <20><>ᥪ. <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>୮<EFBFBD> <20><><EFBFBD>⭮<EFBFBD><E2ADAE><EFBFBD> <20> 15 <20><>ᥪ. -
<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20> <20><><EFBFBD>⨢<EFBFBD><E2A8A2><EFBFBD> <20><><EFBFBD>砥 <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> OR (Over Run) <20>
ॣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ST1 <20> <20><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
Write Deleted Data <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>筠 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Write Data <20><> <20>᪫<EFBFBD>祭<EFBFBD><E7A5AD><EFBFBD> ⮣<>, <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>᭮<EFBFBD><EFBFBD> <20><>થ<EFBFBD><E0AAA5> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ<EFBFBD> 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
Read Deleted Data <20>⥭<EFBFBD><E2A5AD> 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>筠 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Read Data <20><> <20>᪫<EFBFBD>祭<EFBFBD><E7A5AD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㦨<EFBFBD><E3A6A8><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><>砫<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>.
<EFBFBD>᫨ <20><><EFBFBD> SK=0, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> CM
<EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST2 <20> <20><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>᫨ <20><><EFBFBD> SK=1, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>ய<EFBFBD>᪠<EFBFBD><E1AAA0>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD> <20> <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4> <20> <20>⥭<EFBFBD><E2A5AD> ᫥<><E1ABA5><EFBFBD>饣<EFBFBD>.
Read a Track <20>⥭<EFBFBD><E2A5AD> <20><>஦<EFBFBD><E0AEA6>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Read Data <20><> <20>᪫<EFBFBD>祭<EFBFBD><E7A5AD><EFBFBD> ⮣<>, <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢭<EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><>஦<EFBFBD><E0AEA6>. <20>ࠧ<EFBFBD> <20><> <20><>᫥ <20><><EFBFBD><EFBFBD><EFBFBD>㦥<EFBFBD><E3A6A5><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>᭮<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>稭<EFBFBD><E7A8AD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><>஦<EFBFBD><E0AEA6>
<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢭<EFBFBD><EBA2AD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㦨<EFBFBD><E3A6A8><EFBFBD><EFBFBD> <20>訡<EFBFBD><E8A8A1> CRC <20> <20><><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><>஦<EFBFBD><E0AEA6>.
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0><EFBFBD> <20><> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ᥪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20><><EFBFBD>祭<EFBFBD><E7A5AD><EFBFBD> <20> IDR <20> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> ND <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST1, <20>᫨ <20><><EFBFBD>
<EFBFBD><EFBFBD> ᮢ<><E1AEA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD> <20><> <20> SK <20><> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD>ﭨ<EFBFBD> <20><> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>.
<20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD>⠥<EFBFBD> <20><><EFBFBD> ᥪ<><E1A5AA>஢.
<EFBFBD>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><> <20><>襫 <20><><EFBFBD><EFBFBD>᭮<EFBFBD><E1ADAE> <20><>થ<EFBFBD><E0AAA5> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> <20><> ⮣<>, <20><><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>ன ࠧ <20>ਭ<EFBFBD><E0A8AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> <20><> (Missing
Address Mark) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST1 <20> <20><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0
<EFBFBD><EFBFBD>⠭<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> D7 <20> D6 <20> 0 <20> 1 ᮮ⢥<E1AEAE><E2A2A5>⢥<EFBFBD><E2A2A5><EFBFBD>).
Read ID <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⥪<>饣<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>/<2F>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0><EFBFBD>, <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD> <20><>
<EFBFBD><EFBFBD>ࢮ<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD><E7A5AD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>. <20>᫨ <20><> <20><><EFBFBD>室<EFBFBD> <20><><EFBFBD>ண<EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>᭮<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>⨫ <20><><EFBFBD><EFBFBD>᭮<EFBFBD><E1ADAE> <20><>થ<EFBFBD><E0AAA5> <20><><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> <20><> <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST1. <20>᫨ <20><> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>
<EFBFBD><EFBFBD> <20><>襫 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20><> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> ND <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST1 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
Format a Track <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><>஦<EFBFBD><E0AEA6>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>஦<EFBFBD><E0AEA6>. <20><>᫥ <20><><EFBFBD><EFBFBD><EFBFBD>㦥<EFBFBD><E3A6A5><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>᭮<EFBFBD><E1ADAE> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> ᫥<><E1ABA5><EFBFBD>騥 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: GAPS, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ<EFBFBD>, <20><><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, ᮮ⢥<E1AEAE><E2A2A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>騥 <20>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD> IBM System 34
(<28><><EFBFBD><EFBFBD><EFBFBD>ୠ<EFBFBD> <20><><EFBFBD>⭮<EFBFBD><E2ADAE><EFBFBD>) <20> IBM System 3740 (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>⭮<EFBFBD><E2ADAE><EFBFBD>).
<20><>ଠ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫥<><E1ABA5><EFBFBD>騬<EFBFBD> <20>ணࠬ<E0AEA3><E0A0AC><EFBFBD>㥬묨 <20><><EFBFBD>祭<EFBFBD>ﬨ:
* N - <20><>᫮ <20><><EFBFBD><EFBFBD> <20> ᥪ<><E1A5AA><EFBFBD><EFBFBD>.
* SC - <20><>᫮ ᥪ<><E1A5AA>஢ <20><> 樫<><E6A8AB><EFBFBD><EFBFBD><EFBFBD>.
* GPL - <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>ᥪ<EFBFBD><E1A5AA>୮<EFBFBD><E0ADAE> <20>஬<EFBFBD><E0AEAC><EFBFBD>⪠.
* D - <20><><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஬ <20><> 䠧<> <20>ਪ<EFBFBD><E0A8AA><EFBFBD>. <20><><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>⠬<EFBFBD> D. <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஬ <20><> 䠧<> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD> <20><> 4
<EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>:
* C - <20><><EFBFBD><EFBFBD><EFBFBD> 樫<><E6A8AB><EFBFBD><EFBFBD><EFBFBD>
* H - <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD>孮<EFBFBD><E5ADAE><EFBFBD>)
* R - <20><><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>
* N - <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2> <20><>
<EFBFBD><EFBFBD>᫥<EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD><EFBFBD>묨 <20><><EFBFBD><EFBFBD>ࠬ<EFBFBD> ᥪ<><E1A5AA>஢.
<20><>᫥ <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD><EFBFBD> C,H,R,N <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><> <20><>஦<EFBFBD><E0AEA6>. <20><><EFBFBD><EFBFBD>ন<EFBFBD><E0A6A8><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> R
㢥<EFBFBD><EFBFBD>稢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 1 <20><>᫥ <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, <20>, ᫥<><E1ABA5><EFBFBD><EFBFBD>⥫쭮,
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD> <20>㤥<EFBFBD> ᮤ<>ঠ<EFBFBD><E0A6A0> <20><><EFBFBD>祭<EFBFBD><E7A5AD> R+1 <20><><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20><> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20>ᥩ <20><>஦<EFBFBD><E0AEA6>, <20><><EFBFBD><EFBFBD> <20><><EFBFBD>ன ࠧ <20><> <20>㤥<EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㦥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><>᫥ <20>⮣<EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD><E8A0A5><EFBFBD>. <20>᫨
<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20>ਭ<EFBFBD><E0A8AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> Fault, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
䫠<EFBFBD> <20><> <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0 <20> <20><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD> D7 <20> D6 <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0
<EFBFBD><EFBFBD>⠭<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> 0 <20> 1 ᮮ⢥<E1AEAE><E2A2A5>⢥<EFBFBD><E2A2A5><EFBFBD>). <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢨<EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Ready <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20> <20><>砫<EFBFBD> 䠧<> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⠪<><E2A0AA> <20>४<EFBFBD><E0A5AA>頥<EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20>ਢ<EFBFBD><E0A8A2><EFBFBD><EFBFBD><EFBFBD> ᮮ⭮襭<E2ADAE><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD> N, SC, GPL <20><><EFBFBD> ࠧ<><E0A0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ࠧ<><E0A0A7>஢
ᥪ<EFBFBD><EFBFBD>஢.
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> SD - (MFM = 0) <20> DD (MFM = 1) <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> N <20> SC <20> GPL1 <20> GPL2 <20> SC <20> GPL1 <20> GPL2 <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> 128 <20> 0 <20> 1A <20> 07 <20> 1B <20> -- <20> -- <20> -- <20>
<20> 256 <20> 1 <20> 0F <20> 0E <20> 2A <20> 1A <20> 0E <20> 36 <20>
<20> 512 <20> 2 <20> 08 <20> 1B <20> 3A <20> 0F <20> 1B <20> 54 <20>
<20> 1024 <20> 3 <20> 04 <20> 47 <20> 8A <20> 08 <20> 3F <20> 74 <20>
<20> 2048 <20> 4 <20> 02 <20> C8 <20> FF <20> 04 <20> 99 <20> FF <20>
<20> 4096 <20> 5 <20> 01 <20> C8 <20> FF <20> 02 <20> C8 <20> FF <20>
<20> 8192 <20> 6 <20> -- <20> -- <20> -- <20> 01 <20> C8 <20> FF <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
Scan Commands <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᪠<><E1AAA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᪠<><E1AAA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD> <20> <20><>᪠ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>묨, <20>뤠<EFBFBD><EBA4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஬ (<28><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB>஬ <20><><EFBFBD>). <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫쭮, <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD>⮬ <20> <20>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD><EFBFBD> <20>᫮<EFBFBD><E1ABAE><EFBFBD>:
DD = DP DD <= DP DD >= DP
<EFBFBD><EFBFBD><EFBFBD> DD - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><>᪠; DP - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><>᫥ <20>஢<EFBFBD>ન <20>ᥣ<EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, <20>᫨ <20>᫮<EFBFBD><E1ABAE><EFBFBD> <20><> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>ந<EFBFBD><E0AEA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>६<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> (R + STR -> R) <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᪠<><E1AAA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD> <20><><EFBFBD>, <20><><EFBFBD><EFBFBD> <20><> <20>ந<EFBFBD><E0AEA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> ᫥<><E1ABA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD>᫮<EFBFBD><EFBFBD><EFBFBD>:
* <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>᫮<EFBFBD><E1ABAE><EFBFBD> ᪠<><E1AAA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> (ࠢ<><E0A0A2>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
* <20><><EFBFBD>⨣<EFBFBD><E2A8A3><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD> (<28><><EFBFBD>)
* <20>ਭ<EFBFBD><E0A8AD> ᨣ<><E1A8A3><EFBFBD> <20><>
<EFBFBD>᫨ <20>᫮<EFBFBD><E1ABAE><EFBFBD> ᪠<><E1AAA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> 㤮<><E3A4AE><EFBFBD>⢮७<E2A2AE>, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> SH
(Scan Hit) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST2 <20> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>᫨ <20>᫮<EFBFBD><E1ABAE><EFBFBD> <20><> 㤮<><E3A4AE><EFBFBD>⢮७<E2A2AE>
<EFBFBD> <20>஬<EFBFBD><E0AEAC><EFBFBD>⪥ <20><><EFBFBD><EFBFBD><EFBFBD> <20><>砫<EFBFBD><E7A0AB><EFBFBD><EFBFBD> ᥪ<><E1A5AA>஬ (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> R) <20> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD> ᥪ<><E1A5AA>஬
樫<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD>), <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> SN (Scan Not Satisfied) <20>
ॣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ST2 <20> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20>᫨ <20><> <20>६<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20><><EFBFBD><EFBFBD>㯨<EFBFBD> ᨣ<><E1A8A3><EFBFBD> <20><> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>४<EFBFBD><E0A5AA>頥<EFBFBD> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD> <20><> ⥪<>饬 <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><><EFBFBD><EFBFBD> <20> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20>ਢ<EFBFBD><E0A8A2><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><>⮢ SH <20> SN <20><>᫥ ࠧ<><E0A0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>᫮<EFBFBD><E1ABAE><EFBFBD>
᪠<EFBFBD><EFBFBD>஢<EFBFBD><EFBFBD><EFBFBD><EFBFBD>:
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> <20><><EFBFBD><EFBFBD>.ST2<54> <20>
<20> <20><><EFBFBD><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><>.. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹ <20>ਬe砭<65><E7A0AD><EFBFBD>
<20> <20> SN<53> SH<53> <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20><><EFBFBD><EFBFBD><EFBFBD> <20> 0 <20> 1 <20> DD = DP <20>
<20> <20> 1 <20> 0 <20> DD <>DP <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> ࠢ<><E0A0A2> <20> 0 <20> 1 <20> DD = DP <20>
<20> <20> 0 <20> 0 <20> DD < DP <20>
<20> <20> 1 <20> 0 <20> DD > DP <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> ࠢ<><E0A0A2> <20> 0 <20> 1 <20> DD = DP <20>
<20> <20> 0 <20> 0 <20> DD > DP <20>
<20> <20> 1 <20> 0 <20> DD < DP <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㦨<EFBFBD><E3A6A8><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ<EFBFBD> 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>
ᥪ<EFBFBD><EFBFBD>஢ <20> <20><><EFBFBD> SK=0, <20><> <20><><EFBFBD>⠥<EFBFBD> <20><><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD> ᥪ<><E1A5AA>஬ 樫<><E6A8AB><EFBFBD><EFBFBD><EFBFBD>,
<EFBFBD><EFBFBD>⠭<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> CM (Control Mark) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST2 <20> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>᫨
<EFBFBD><EFBFBD> <20><><EFBFBD> SK=1, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>ய<EFBFBD>᪠<EFBFBD><E1AAA0> <20><><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD> <20> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> ᫥<><E1ABA5><EFBFBD>騩. <20> <20>⮬
<EFBFBD><EFBFBD><EFBFBD>砥 <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> CM <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST2, ᨣ<><E1A8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>騩 <20>
⮬, <20><><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>祭 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD>.
<20><><EFBFBD><EFBFBD><EFBFBD> <20><> <20>ணࠬ<E0AEA3><E0A0AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> STP (STP=01 <20><><EFBFBD> <20><>ࠡ<EFBFBD>⪨
<EFBFBD><EFBFBD>᫥<EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA>஢, STP=02 <20><><EFBFBD> <20>⥭<EFBFBD><E2A5AD> <20><>१ <20><><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD>) <20><><EFBFBD> <20><>
(Multitrack), <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD> <20><> <20><>஦<EFBFBD><E0AEA6> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>⠭. <20><><EFBFBD>ਬ<EFBFBD><E0A8AC>, <20>᫨ STP = 02, <20><> = 0, ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20>஭㬥஢<E3ACA5><E0AEA2><EFBFBD>
<EFBFBD><EFBFBD>᫥<EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫쭮 <20><> 1 <20><> 26, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Scan <20><>稭<EFBFBD><E7A8AD><EFBFBD> <20> ᥪ<><E1A5AA><EFBFBD><EFBFBD> 21, <20><> <20>ᯥ譮
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ࠡ<EFBFBD>⠭<EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> 21, 23 <20> 25. <20><><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD> 26 <20>㤥<EFBFBD> <20>ய<EFBFBD>饭, <20> <20><>⥬
<EFBFBD>ਤ<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD> <20>맮<EFBFBD><EBA7AE><EFBFBD> <20><><EFBFBD><EFBFBD>ଠ<EFBFBD>쭮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>樨. <20>᫨
<EFBFBD><EFBFBD> <20><><EFBFBD> ࠢ<>﫮<EFBFBD><EFABAE> 25, <20> ᪠<><E1AAA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><> <20><>稭<EFBFBD><E7A8AD><EFBFBD><EFBFBD><EFBFBD> <20> ᥪ<><E1A5AA><EFBFBD><EFBFBD> 20, <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Scan <20><><EFBFBD><EFBFBD><EFBFBD>訫<EFBFBD><E8A8AB><EFBFBD> <20><> <20>ᯥ譮.
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>筮 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD>/<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㦨<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 27 <20><>ᥪ. <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>୮<EFBFBD> <20><><EFBFBD>⭮<EFBFBD><E2ADAE><EFBFBD> <20> 13 <20><>ᥪ.
<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20> <20><><EFBFBD>⨢<EFBFBD><E2A8A2><EFBFBD> <20><><EFBFBD>砥 <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD>⠢<EFBFBD><E2A0A2> 䫠<> OR (Over Run) <20>
ॣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ST1 <20> <20>४<EFBFBD><E0A5AA><EFBFBD><EFBFBD><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
Seek <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>樮<EFBFBD><E6A8AE>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>/<2F>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><>६<EFBFBD>頥<EFBFBD><E9A0A5><EFBFBD> <20> 樫<><E6A8AB><EFBFBD><EFBFBD><EFBFBD> <20><> 樫<><E6A8AB><EFBFBD><EFBFBD> <20><>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Seek. <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> PCN (Present Cylinder
Number), <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>࠭<EFBFBD><E0A0AD> ⥪<>饥 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> NCN (New
Cylinder Number) - <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᨬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD> ᫥<><E1ABA5><EFBFBD>騥 <20><><EFBFBD><EFBFBD>⢨<EFBFBD>:
* PCN < NCN - ᨣ<><E1A8A3><EFBFBD> <20><><EFBFBD>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1" <20>
<20>뤠<EFBFBD><EBA4A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 蠣<>.
* PCN > NCN - ᨣ<><E1A8A3><EFBFBD> <20><><EFBFBD>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "0" <20>
<20>뤠<EFBFBD><EBA4A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 蠣<>.
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>뤠<EFBFBD><EBA4A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᮢ 蠣<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Specify <20><><EFBFBD>祭<EFBFBD><E7A5AD><EFBFBD> SRT
(Stepping Rate Time). <20><>᫥ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 蠣<> <20><><EFBFBD><EFBFBD><EFBFBD> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD>
PCN <20> NCN <20> <20><><EFBFBD><EFBFBD><EFBFBD> PCN = NCN, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> SE (Seek End) <20>
ॣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ST0 <20> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><> 䠧<> <20>ਪ<EFBFBD><E0A8AA><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> FDC Busy (<28><><EFBFBD><EFBFBD><EFBFBD>),
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 䠧<> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4> <20> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> NON Busy (<28><>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>). <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> NON Busy, <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD>㣨<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 Seek <20> <20> <20>⮬ <20><><EFBFBD>砥 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>樮<EFBFBD><E6A8AE>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20>㤥<EFBFBD>
<EFBFBD>믮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>६<EFBFBD><E0A5AC><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>᪮<EFBFBD>쪨<EFBFBD> (<28><> 4-<2D>) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD><E2A5AB>.
<20>᫨ <20><>। <20><>砫<EFBFBD><E7A0AB> 䠧<> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><> <20>६<EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Seek
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> Not Ready (<28><> <20><>⮢), <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>
<EFBFBD><EFBFBD>⠭<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> NR (Not Ready) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD><E8A0A5><EFBFBD>.
Recalibrate <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2> (<28>⪠<EFBFBD>)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD>/<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><>
<EFBFBD><EFBFBD>஦<EFBFBD><EFBFBD> 0. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20> <20>⮬ <20><><EFBFBD>砥 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>뤠<EFBFBD><EBA4A0> ᨣ<><E1A8A3><EFBFBD> TR00. <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> PCN <20> <20>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> TR00 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20><><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>஢<EFBFBD><E0AEA2><EFBFBD>, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1" ᨣ<><E1A8A3><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>ࠢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Dir <20> <20>뤠<EFBFBD><EBA4A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 蠣<> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD> TR00
<EFBFBD>⠭<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>᮪<EFBFBD><E1AEAA>, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> SE (Seek End) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD>
ST0 <20> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>᫨ <20><>᫥ <20>뤠<EFBFBD><EBA4A0> 77 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᮢ 蠣<> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>
ᨣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<><E4ABA0> SE (Seek End) <20> EC
(Equipment Check) <20> ॣ<><E0A5A3><EFBFBD><EFBFBD> ST0 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD><E8A0A5><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD>ந<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ४<><E0A5AA><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2> <20><><EFBFBD><EFBFBD><EFBFBD>६<EFBFBD><E0A5AC><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> 4-<2D> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD><E2A5AB>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>
<EFBFBD><EFBFBD>祧<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Ready <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>筠 ॠ<>樨 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Seek.
Sense Interrupt Status <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> INT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB>஬ <20> ᫥<><E1ABA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:
1. <20><> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫥<><E1ABA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:
* Read Data
* Read a Track
* Read ID
* Read Deleted Data
* Write Data
* Write Deleted Data
* Format a Track
* Scan Sommand
2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Ready <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>
3. <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Seek <20><><EFBFBD> Recalibrate
4. <20><> 䠧<> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ०<><E0A5A6><EFBFBD> NON DMA
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (1) <20> (4) <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஬, <20>.<2E>.
<EFBFBD>ந<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20>६<EFBFBD> <20><>ଠ<EFBFBD>쭮<EFBFBD><ECADAE> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (2) <20> (3) <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஬ ⮫쪮 <20><>⥬
<EFBFBD>믮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>. <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> ᨣ<><E1A8A3><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD>।<EFBFBD>⢮<EFBFBD> <20><>⮢ 5-7 ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>稭<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>.
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> SE <20> INT Code <20> <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹ <20>
<20> <20><><EFBFBD> <20> <20><><EFBFBD> <20> <20><><EFBFBD> <20> <20><><EFBFBD>稭<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20>
<20> 5 <20> 6 <20> 7 <20> <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> 0 <20> 1 <20> 1 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Readu <20>
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> 1 <20> 0 <20> 0 <20> <20><>ଠ<EFBFBD>쭮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>
<20> <20> <20> <20> Seek <20> Recalibrate <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> 1 <20> 1 <20> 0 <20> <20>訡<EFBFBD>筮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>
<20> <20> <20> <20> Seek <20> Recalibrate <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Seek <20> Recalibrate <20><> <20><><EFBFBD><EFBFBD><EFBFBD> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD>⮬<EFBFBD> <20>ॡ<EFBFBD><E0A5A1><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD>ᯮ<EFBFBD>짮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Sense Interrupt Status <20><><EFBFBD> <20><> <20>ᯥ譮<E1AFA5><E8ADAE> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20>
<EFBFBD>஢<EFBFBD>ન <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> (PCN).
Specify <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> 3 <20>६<EFBFBD><E0A5AC><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ࢠ<EFBFBD><E0A2A0><EFBFBD> - <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD><E2A5AB>:
* HUT - <20><>㧠 <20><> <20>⢮<EFBFBD><E2A2AE> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>६<EFBFBD> <20><> <20><><EFBFBD><EFBFBD>砭<EFBFBD><E7A0AD> <20><><EFBFBD><EFBFBD><EFBFBD>樨
<20>⥭<EFBFBD><E2A5AD>/<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⢮<EFBFBD><E2A2AE> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>孮<EFBFBD><E5ADAE><EFBFBD> <20><>᪠.
<20>६<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 16 <20>ᥪ. <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD>
16..240 <20>ᥪ.
* SRT - <20>६<EFBFBD> 蠣<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>६<EFBFBD> <20><><EFBFBD><EFBFBD>প<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
<20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD>⥫<EFBFBD><E2A5AB>묨 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᠬ<EFBFBD> 蠣<>. <20>६<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><> 1 <20>ᥪ. <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD> 1..16 <20>ᥪ.
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>! <20><><EFBFBD><EFBFBD>訥 <20><>᫠ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>襥 <20>६<EFBFBD> 蠣<>:
0FH - 1 <20>ᥪ., 0EH - 2 <20>ᥪ. <20> <20>.<2E>.
* HLT - <20>६<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>६<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20>뤠祩 ᨣ<><E1A8A3><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20><>砫<EFBFBD><E7A0AB> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20>⥭<EFBFBD><E2A5AD>/<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> 2 <20>ᥪ. <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD> 2..254 <20>ᥪ.
<20><><EFBFBD> <20>६<EFBFBD><E0A5AC><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ࢠ<EFBFBD><E0A2A0>, 㪠<><E3AAA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>, <20><>易<EFBFBD><EFA7A0> <20> ⠪⮢<E2A0AA><E2AEA2> <20><><EFBFBD><EFBFBD><EFBFBD>⮩
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>஫<EFBFBD><EFBFBD><EFBFBD><EFBFBD> (CLK, <20><><EFBFBD>.19) <20> <20>ਢ<EFBFBD><E0A8A2><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD> CLK = 8 <20><><EFBFBD> (203 <20><>.
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>). <20>᫨ <20><> CLK = 4 <20><><EFBFBD> (133 <20><>. <20><><EFBFBD><EFBFBD>), <20><> <20><><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> 㬥<><E3ACA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> 2
ࠧ<EFBFBD>.
<20><><EFBFBD> ND <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢫<EFBFBD><E2A2AB><EFBFBD> <20>롮<EFBFBD> ०<><E0A5A6><EFBFBD> <20><><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>: <20>᫨ <20><><EFBFBD>
ND=1, <20>롨ࠥ<EBA1A8><E0A0A5><EFBFBD> ०<><E0A5A6> NON DMA (<28><>-<2D><><EFBFBD>), <20>᫨ <20><> ND=0, <20><> <20>롨ࠥ<EBA1A8><E0A0A5><EFBFBD> ०<><E0A5A6>
DMA (<28><><EFBFBD>).
Sense Drive Status <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20>ᯮ<EFBFBD>짮<EFBFBD><ECA7AE><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஬, <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD> 㧭<><E3A7AD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ST3 ᮤ<>ন<EFBFBD> <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>.
Invalid <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⨬<EFBFBD><E2A8AC> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<20>᫨ <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD> <20><>
<EFBFBD><EFBFBD>襯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>᫥<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>蠥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20> <20>⮬ <20><><EFBFBD>砥 <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20><>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD> 6 <20> 7 <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> (DIO <20> RQM) <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>
1, 㪠<>뢠<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䠧<> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> - <20>⥭<EFBFBD><E2A5AD>
ॣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ST0. <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST0 <20><>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> 80<38>, <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD>騩 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⨬<EFBFBD><E2A8AC>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
<20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD> <20>⬥<EFBFBD><E2ACA5><EFBFBD><EFBFBD>, <20><><EFBFBD> <20><>᫥ <20><><EFBFBD><EFBFBD><EFBFBD>権 Seek <20> Recalibrate
(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20><>᫥ <20><><EFBFBD><EFBFBD>砭<EFBFBD><E7A0AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>), <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Sense Interrupt Status, <20><><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>ਬ<EFBFBD><E0A8AC> ᫥<><E1ABA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⨬<EFBFBD><E2A8AC>.
<20><><EFBFBD>짮<EFBFBD><ECA7AE>⥫<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20>ᯮ<EFBFBD>짮<EFBFBD><ECA7AE><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NOP (<28><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨) <20><><EFBFBD> <20>ਢ<EFBFBD><E0A8A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>⭮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>
<EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨.


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<20><><EFBFBD>⥬<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> i8272
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<EFBFBD> <20> R <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20>
<EFBFBD> <20><><EFBFBD><EFBFBD> <20> / <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹ <20>ਬ<EFBFBD>砭<EFBFBD><E7A0AD> <20>
<EFBFBD> <20> W <20> 7 <20> 6 <20> 5 <20> 4 <20> 3 <20> 2 <20> 1 <20> 0 <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ਪ<EFBFBD><E0A8AA> <20> W <20> Read/Write/Scan <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫮<><E1ABAE> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ (<28><>. ⠡<><E2A0A1><EFBFBD><EFBFBD>) <20>
<EFBFBD> <20> <20> 0 <20> 0 <20> 0 <20> 0 <20> 0 <20>HDS<44>DS0<53>DS1<53> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ <20>
<EFBFBD> <20> <20> C <20> <20>
<EFBFBD> <20> <20> H <20> <20>
<EFBFBD> <20> <20> R <20> <20>
<EFBFBD> <20> <20> N <20> <20>
<EFBFBD> <20> <20> EOT <20> <20>
<EFBFBD> <20> <20> GPL <20> <20>
<EFBFBD> <20> <20> DTL <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> R <20> ST0 <20> <20>
<EFBFBD> <20> <20> ST1 <20> <20>
<EFBFBD> <20> <20> ST2 <20> <20>
<EFBFBD> <20> <20> C <20> <20>
<EFBFBD> <20> <20> H <20> <20>
<EFBFBD> <20> <20> R <20> <20>
<EFBFBD> <20> <20> N <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫮<><E1ABAE>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> 7 <20> 6 <20> 5 <20> 4 <20> 3 <20> 2 <20> 1 <20> 0 <20> <20>ਬ. <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> Read Data <20> MT<4D>MFM<46> SK<53> 0 <20> 0 <20> 1 <20> 1 <20> 0 <20> <20>
<20> Read Del.Data <20> MT<4D>MFM<46> SK<53> 0 <20> 1 <20> 1 <20> 0 <20> 0 <20> <20>
<20> Write Data <20> MT<4D>MFM<46> SK<53> 0 <20> 0 <20> 1 <20> 0 <20> 1 <20> <20>
<20> Write Del.Data <20> MT<4D>MFM<46> SK<53> 0 <20> 1 <20> 0 <20> 0 <20> 1 <20> <20>
<20> Read a Track <20> MT<4D>MFM<46> SK<53> 0 <20> 0 <20> 0 <20> 1 <20> 0 <20> <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> Scan Equal <20> MT<4D>MFM<46> SK<53> 1 <20> 0 <20> 0 <20> 0 <20> 1 <20> * <20>
<20> Scan Low or Eq. <20> MT<4D>MFM<46> SK<53> 1 <20> 1 <20> 0 <20> 0 <20> 1 <20> * <20>
<20> Scan High or Eq. <20> MT<4D>MFM<46> SK<53> 1 <20> 1 <20> 1 <20> 0 <20> 1 <20> * <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
* <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᪠<><E1AAA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20>ਪ<EFBFBD><E0A8AA><EFBFBD> DTL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> STD
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<EFBFBD> <20> R <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20>
<EFBFBD> <20><><EFBFBD><EFBFBD> <20> / <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹ <20>ਬ<EFBFBD>砭<EFBFBD><E7A0AD> <20>
<EFBFBD> <20> W <20> 7 <20> 6 <20> 5 <20> 4 <20> 3 <20> 2 <20> 1 <20> 0 <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> Read ID <20> 4AH/0AH <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ਪ<EFBFBD><E0A8AA> <20> W <20> 0 <20>MFM<46> 0 <20> 0 <20> 1 <20> 0 <20> 1 <20> 0 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫮<><E1ABAE> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ <20>
<EFBFBD> <20> <20> 0 <20> 0 <20> 0 <20> 0 <20> 0 <20>HDS<44>DS0<53>DS1<53> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> R <20> ST0 <20> <20>
<EFBFBD> <20> <20> ST1 <20> <20>
<EFBFBD> <20> <20> ST2 <20> <20>
<EFBFBD> <20> <20> C <20> <20>
<EFBFBD> <20> <20> H <20> <20>
<EFBFBD> <20> <20> R <20> <20>
<EFBFBD> <20> <20> N <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> Format a Track <20> 4DH/0DH <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ਪ<EFBFBD><E0A8AA> <20> W <20> 0 <20>MFM<46> 0 <20> 0 <20> 1 <20> 1 <20> 0 <20> 1 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫮<><E1ABAE> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ <20>
<EFBFBD> <20> <20> 0 <20> 0 <20> 0 <20> 0 <20> 0 <20>HDS<44>DS0<53>DS1<53> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ <20>
<EFBFBD> <20> <20> N <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20>
<EFBFBD> <20> <20> SC <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ ᥪ<><E1A5AA>஢ <20>
<EFBFBD> <20> <20> GPL <20> <20><><EFBFBD>ᥪ<EFBFBD><E1A5AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD> GAP <20>
<EFBFBD> <20> <20> D <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> R <20> ST0 <20> <20>
<EFBFBD> <20> <20> ST1 <20> <20>
<EFBFBD> <20> <20> ST2 <20> <20>
<EFBFBD> <20> <20> C <20> <20>
<EFBFBD> <20> <20> H <20> <20>
<EFBFBD> <20> <20> R <20> <20>
<EFBFBD> <20> <20> N <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> Recalibrate <20> 07H <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ਪ<EFBFBD><E0A8AA> <20> W <20> 0 <20> 0 <20> 0 <20> 0 <20> 0 <20> 1 <20> 1 <20> 1 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫮<><E1ABAE> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ <20>
<EFBFBD> <20> <20> 0 <20> 0 <20> 0 <20> 0 <20> 0 <20>HDS<44>DS0<53>DS1<53> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20> <20><><EFBFBD><EFBFBD> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> Sense Interrupt Status <20> 08H <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ਪ<EFBFBD><E0A8AA> <20> W <20> 0 <20> 0 <20> 0 <20> 0 <20> 1 <20> 0 <20> 0 <20> 0 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫮<><E1ABAE> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> R <20> ST0 <20> <20><><EFBFBD><EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20>
<EFBFBD> <20> <20> PCN <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> Specify <20> 03H <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ਪ<EFBFBD><E0A8AA> <20> W <20> 0 <20> 0 <20> 0 <20> 0 <20> 0 <20> 0 <20> 1 <20> 1 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫮<><E1ABAE> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20> <20> SRT <20> HUT <20> <20><><EFBFBD> 䠧 १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ <20> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>
<EFBFBD> <20> <20> HLT <20> ND<4E> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<EFBFBD> Sense Drive Status <20> 04H <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ਪ<EFBFBD><E0A8AA> <20> W <20> 0 <20> 0 <20> 0 <20> 0 <20> 1 <20> 1 <20> 0 <20> 1 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫮<><E1ABAE> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ <20>
<EFBFBD> <20> <20> 0 <20> 0 <20> 0 <20> 0 <20> 0 <20>HDS<44>DS0<53>DS1<53> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> R <20> ST3 <20> <20><><EFBFBD><EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> Seek <20> 0FH <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ਪ<EFBFBD><E0A8AA> <20> W <20> 0 <20> 0 <20> 0 <20> 0 <20> 1 <20> 1 <20> 1 <20> 1 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫮<><E1ABAE> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ <20>
<EFBFBD> <20> <20> 0 <20> 0 <20> 0 <20> 0 <20> 0 <20>HDS<44>DS0<53>DS1<53> <20>
<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹ <20>
<EFBFBD> <20> <20> NCN <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20> <20><><EFBFBD><EFBFBD> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20>
<EFBFBD> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> Invalid <20> XXH <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20>ਪ<EFBFBD><E0A8AA> <20> W <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⨬<EFBFBD><E2A8AC> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> R <20> ST0 <20> ST0=80H - <20>ਧ<EFBFBD><E0A8A7><EFBFBD> <20>
<EFBFBD> <20> <20> <20> <20>訡<EFBFBD><E8A8A1> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ


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<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> <20><>ଠ<EFBFBD> <20>࠭<EFBFBD><E0A0AD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ଠ樨 <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>᪥. <20>
<20> <20>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD> IBM System 34 (SD) <20> IBM System 3740 (DD). <20>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20><><EFBFBD><EFBFBD><EFBFBD>ͻ <-- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><>砫<EFBFBD> <20><>஦<EFBFBD><E0AEA6>). Hex Hex
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> <20> <20> SD <20> DD <20>
<20> <20> <-- <20><><EFBFBD>⨭<EFBFBD><E2A8AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>஬<EFBFBD><E0AEAC><EFBFBD>⮪ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20>஬<EFBFBD><E0AEAC><EFBFBD>⪠ (<28><><EFBFBD><EFBFBD>) - <20> 28 <20> 50 <20>
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> - <20> FF <20> 4E <20>
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20> <20> <-- <20><><EFBFBD> ᨭ<>஭<EFBFBD><E0AEAD><EFBFBD>樨 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD>) - <20> 6 <20> 0C <20>
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> - <20> 00 <20> 00 <20>
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20> <-- <20><><EFBFBD><EFBFBD>᭠<EFBFBD> <20><>⪠ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20> <20>
<20> <20> (4 <20><><EFBFBD><EFBFBD><EFBFBD>) <20> FC <20> C2*<2A>
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> - <20> <20><> <20> C2*<2A>
<20> <20> <20>(D7)<29> C2*<2A>
<20> <20> <20> <20> FC <20>
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20> <-- <20>஬<EFBFBD><E0AEAC><EFBFBD>⮪ (<28><><EFBFBD><EFBFBD>) - <20> 1A <20> 32 <20>
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> - <20> FF <20> 4E <20>
<20><><EFBFBD><EFBFBD><EFBFBD>ͼ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 横<><E6A8AA><EFBFBD><EFBFBD>᪮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>७<EFBFBD><E0A5AD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>:
<20><><EFBFBD><EFBFBD><EFBFBD>ͻ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> <20> <-- <20><><EFBFBD> ᨭ<>஭<EFBFBD><E0AEAD><EFBFBD>樨. <20><><EFBFBD><EFBFBD><EFBFBD>: <20> 6 <20> 0C <20>
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> - <20> 00 <20> 00 <20>
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20> <-- <20><><EFBFBD><EFBFBD>᭠<EFBFBD> <20><>⪠ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> <20> FE <20> A1*<2A>
<20> <20> (4 <20><><EFBFBD><EFBFBD><EFBFBD>) <20> <20><> <20> A1*<2A>
<20> <20> <20>(C7)<29> A1*<2A>
<20> <20> <20> <20> FE <20>
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20> C <20> <-- <20><><EFBFBD><EFBFBD><EFBFBD> <20><>஦<EFBFBD><E0AEA6>
<20><><EFBFBD><EFBFBD><EFBFBD>͹
<20> H <20> <-- <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>孮<EFBFBD><E5ADAE><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD>͹
<20> R <20> <-- <20><><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD>͹
<20> N <20> <-- <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>:
<20> <20> 00 - 128, 01 - 256, 02 - 512, 03 - 1024 <20> <20>.<2E>.
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> <20> <-- <20>஬<EFBFBD><E0AEAC><EFBFBD>⮪. <20><><EFBFBD><EFBFBD><EFBFBD>: <20> FE <20> 4E <20>
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> - <20> 0B <20> 16 <20>
<20> <20> <20> <20> <20>
<20> <20> <20> <20> <20>
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20> <20> <-- 2 <20><><EFBFBD><EFBFBD><EFBFBD> CRC - <20><><EFBFBD><EFBFBD>஫<EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> <20> <-- <20><><EFBFBD> ᨭ<>஭<EFBFBD><E0AEAD><EFBFBD>樨. <20><><EFBFBD><EFBFBD><EFBFBD>: <20> 0B <20> 16 <20>
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> - <20> FF <20> 4E <20>
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20> <-- <20><><EFBFBD><EFBFBD>᭠<EFBFBD> <20><>⪠ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><> <20> A1*<2A>
<20> <20> <20>(C7)<29> A1*<2A>
<20> <20> <20> <20> A1*<2A>
<20> <20> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> - <20> FB <20> FB <20>
<20> <20> <20><><EFBFBD> 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> - <20> F8 <20> F8 <20>
<20><><EFBFBD><EFBFBD><EFBFBD>͹ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20> <20> <-- <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: 128, 256, 512 ... <20><><EFBFBD><EFBFBD>.
<20><><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20> <-- 2 <20><><EFBFBD><EFBFBD><EFBFBD> CRC - <20><><EFBFBD><EFBFBD>஫<EFBFBD>
<20><><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20> <-- <20><><EFBFBD><EFBFBD>ᥪ<EFBFBD><E1A5AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>஬<EFBFBD><E0AEAC><EFBFBD>⮪. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20> FF <20> 4E <20>
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20>஬<EFBFBD><E0AEAC><EFBFBD>⪠ (<28><><EFBFBD><EFBFBD>): <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<20> <20> 8 ᥪ<><E1A5AA>஢ <20> 3A <20> 74 <20>
<20> <20> 15 ᥪ<><E1A5AA>஢ <20> 2A <20> 54 <20>
<20> <20> 26 ᥪ<><E1A5AA>஢ <20> 1B <20> 36 <20>
<20><><EFBFBD><EFBFBD><EFBFBD>ͼ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<20><> - ⠪⮢<E2A0AA><E2AEA2> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
A1*, C2* - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20>믠<EFBFBD><EBAFA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⠪⮢<E2A0AA><E2AEA2> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᮢ


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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ST0 - ST3 <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>ᠭ<EFBFBD><E1A0AD> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ST0 <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D7 <20> Interrupt <20> IC <20> <20><><EFBFBD><EFBFBD> D7,D6 ᮢ<><E1AEA2><EFBFBD>⭮ <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><>室 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>맢<EFBFBD><EBA7A2>襩 <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>: <20>
<EFBFBD> D6 <20> Code <20> <20> 00 - <20><>ଠ<EFBFBD>쭮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (NT - Normal Termination) <20>
<EFBFBD> <20> <20> <20> 01 - <20>訡<EFBFBD>筮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (AT - Abnormal Terminated) <20>
<EFBFBD> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>뫠 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><> <20><> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD> <20>ᯥ譮. <20>
<EFBFBD> <20> <20> <20> 10 - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⨬<EFBFBD><E2A8AC> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (IC - Invalid Command). <20>
<EFBFBD> <20> <20> <20> 11 - <20><><EFBFBD><EFBFBD>ଠ<EFBFBD>쭮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>-<2D><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Ready<64>
<EFBFBD> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D5 <20> Seek End <20> SE <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Seek, <20><><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D4 <20> Equipment <20> EC <20> <20>᫨ <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><><EFBFBD>襫 ᨣ<><E1A8A3><EFBFBD> Fault <20><><EFBFBD> <20><>᫥ 77 蠣<><E8A0A3> <20><> <20><><EFBFBD><EFBFBD>祭 <20>
<EFBFBD> <20> Check <20> <20> ᨣ<><E1A8A3><EFBFBD> TR00, <20><><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D3 <20> Not Ready <20> NR <20> <20>᫨ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> Not Ready <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD> <20>
<EFBFBD> <20> <20> <20> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D2 <20> Head Address<73> HD <20> <20><><EFBFBD><EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> 㪠<><E3AAA0><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D1 <20> Unit <20> US1 <20> <20><><EFBFBD> <20><><EFBFBD><EFBFBD> 㪠<>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>. <20>
<EFBFBD> D0 <20> Select <20> US0 <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ST1 <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D7 <20> End OF <20> EN <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>⠥<EFBFBD><E2A0A5><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஬, <20>
<EFBFBD> <20> Cylinder <20> <20> <20>ॢ<EFBFBD><E0A5A2><EFBFBD><EFBFBD>騬 <20><><EFBFBD><EFBFBD><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> 樫<><E6A8AB><EFBFBD><EFBFBD><EFBFBD>, 䫠<> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D6 <20> ----- <20> <20> <20><> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>ᥣ<EFBFBD><E1A5A3> = 0 <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D5 <20> Data Error <20> DE <20> <20><><EFBFBD><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFA2AB><EFBFBD><EFBFBD> <20>訡<EFBFBD><E8A8A1> CRC <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20>
<EFBFBD> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D4 <20> Over Run <20> OR <20> <20><><EFBFBD><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>㦥<EFBFBD> <20><><EFBFBD>⥬<EFBFBD><E2A5AC> <20>
<EFBFBD> <20> <20> <20> <20><> <20>६<EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>). <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D3 <20> ----- <20> <20> <20><> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>ᥣ<EFBFBD><E1A5A3> = 0. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D2 <20> No Data <20> ND <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Read Data, Write Deleted Data <20><><EFBFBD> Scan <20>᫨ <20>
<EFBFBD> <20> <20> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD>, 㪠<><E3AAA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ॣ. IDR, 䫠<> = "1". <20>
<EFBFBD> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Read ID, <20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20>
<EFBFBD> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><><EFBFBD> <20>訡<EFBFBD><E8A8A1>, 䫠<> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Read a Cylinder, <20>᫨ <20><>砫<EFBFBD><E7A0AB><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>
<EFBFBD> <20> <20> <20> 䫠<> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D1 <20> Not <20> NW <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>, <20>᫨ <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㦨<EFBFBD><E3A6A8><EFBFBD><EFBFBD> <20>
<EFBFBD> <20> Writable <20> <20> ᨣ<><E1A8A3><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>, 䫠<> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D0 <20> Missing <20> MA <20> <20>᫨ <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䨪<EFBFBD><E4A8AA><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><> <20><><EFBFBD>室<EFBFBD> <20>
<EFBFBD> <20> Address <20> <20> <20><><EFBFBD>ண<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>᭮<EFBFBD><E1ADAE> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, 䫠<> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD> <20> Mark <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20> <20> <20> <20>᫨ <20><> <20><><EFBFBD><EFBFBD><EFBFBD>㦥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, 䫠<> <20>
<EFBFBD> <20> <20> <20> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD> <20>⮬ <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> MD <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> ST2. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>ᠭ<EFBFBD><E1A0AD> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ST2 <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D7 <20> ------ <20> <20> <20><> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>ᥣ<EFBFBD><E1A5A3> = 0. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D6 <20> Control <20> CM <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Read Data <20> Scan <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㦥<EFBFBD><E3A6A5><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20> <20>
<EFBFBD> <20> Mark <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ஬ 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D5 <20> Data Error <20> DD <20> <20><><EFBFBD><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1" <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>㦥<EFBFBD><E3A6A5><EFBFBD> <20>訡<EFBFBD><E8A8A1> CRC <20>
<EFBFBD> <20> in Data <20> <20> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>. <20>
<EFBFBD> <20> Field <20> <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D4 <20> Wrong <20> WC <20> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᮢ<><E1AEA2><EFBFBD>⭮ <20> <20><>⮬ ND, <20>᫨ ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> <20>
<EFBFBD> <20> Cylinder <20> <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20> <20>⫨砥<E2ABA8><E7A0A5><EFBFBD> <20><> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> IDR. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D3 <20> Scan Equal <20> SH <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Scan <20><><EFBFBD> 㤮<><E3A4AE><EFBFBD>⢮७<E2A2AE><E0A5AD> <20>᫮<EFBFBD><E1ABAE><EFBFBD> "ࠢ<><E0A0A2>" <20>
<EFBFBD> <20> Hit <20> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D2 <20> Scan Not <20> SN <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Scan, <20>᫨ <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD>,<2C>⢥<EFBFBD><E2A2A5><EFBFBD>騩 <20>
<EFBFBD> <20> Satisfied <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>᫮<EFBFBD><E1ABAE><EFBFBD>, 䫠<> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D1 <20> Bad <20> BC <20> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᮢ<><E1AEA2><EFBFBD>⭮ <20> <20><>⮬ ND, <20>᫨ ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> <20>
<EFBFBD> <20> Cylinder <20> <20> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20> <20>⫨砥<E2ABA8><E7A0A5><EFBFBD> <20><> ᮤ<><E1AEA4><EFBFBD>⬮<EFBFBD><E2ACAE> IDR <20> <20> = 0FFH. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D0 <20> Missing <20> MD <20> <20>᫨ <20><><EFBFBD> <20>⥭<EFBFBD><E2A5AD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>祭 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20>
<EFBFBD> <20> Address Mark<72> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>થ<EFBFBD> 㤠<><E3A4A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, 䫠<> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> "1". <20>
<EFBFBD> <20>in Data Field<6C> <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ST3 <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D7 <20> Fault <20> FT <20> <20><>ࠦ<EFBFBD><E0A0A6><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Fault <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D6 <20> Write <20> WP <20> <20><>ࠦ<EFBFBD><E0A0A6><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Write Protect (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>) <20>
<EFBFBD> <20> Protect <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D5 <20> Ready <20> RDY <20> <20><>ࠦ<EFBFBD><E0A0A6><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Ready <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D4 <20> Track 00 <20> T0 <20> <20><>ࠦ<EFBFBD><E0A0A6><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Track 00 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D3 <20> Two Side <20> TS <20> <20><>ࠦ<EFBFBD><E0A0A6><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ᨣ<><E1A8A3><EFBFBD><EFBFBD> Two Side <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D2 <20> Head Address<73> HD <20> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><> <20><><EFBFBD>࠭<EFBFBD><E0A0AD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>孮<EFBFBD><E5ADAE><EFBFBD> <20><>᪠. <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹
<EFBFBD> D1 <20> Unit <20> US1 <20> <20><><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD>࠭<EFBFBD><E0A0AD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>. <20>
<EFBFBD> D0 <20> Select <20> US0 <20> <20>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ

293
study/hardware/Floppy/floppy/FDDIO.C Normal file
View File

@@ -0,0 +1,293 @@
/////////////////////////////////////
// Demo of how to access a floppy //
// drive without of a BIOS stuff //
// //
// Program uses DMA data transferr //
/////////////////////////////////////
////////////////////////////////
// Compiler Borland C/C++ 3.1 //
////////////////////////////////
#ifdef __cplusplus
#define __CPPARGS ...
#else
#define __CPPARGS
#endif
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <dos.h>
#define CYL 0
typedef struct _DPT_
{
unsigned char srt_hut;
unsigned char dma_hlt;
unsigned char motor_w;
unsigned char sec_size;
unsigned char eot;
unsigned char gap_rw;
unsigned char dtl;
unsigned char gap_f;
unsigned char fill_char;
unsigned char hst;
unsigned char mot_start;
} DPT;
DPT far *get_dpt (void);
void fdc_out (unsigned char byte);
int fdc_inp (void);
void int_wait (void);
void dma_init (void far *);
void tdelay (int cnt);
void interrupt IRQ6 (__CPPARGS);
void interrupt (*oldIRQ6) (__CPPARGS);
char buffer[512];
static int IRQ=0;
void main (void)
{
unsigned i;
long l;
char status[7], main_status;
DPT _far *fdpt;
FILE *sect;
printf ("\n\nWork with Floppy Drive Controller\n");
oldIRQ6 = _dos_getvect (8+6);
_dos_setvect (8+6, IRQ6);
// We're opening a file in order to store in it
// the very first sector of the diskette
sect = fopen ("!sector.dat", "wb+");
// Getting Diskette Parameter Table pointer
fdpt = get_dpt();
// Turning on the motor in the "A:" drive
// Enabling interrupts before actual turning on
_enable();
outp (0x3F2, 0x1C);
// Waiting while motor speeds up
tdelay (18);
// Displaying contents of the controller state register
printf ("Motor is on.\t\t");
printf ("State: %02.2X\n", inp(0x3F4));
// recalibrate
fdc_out (7);
fdc_out (0);
int_wait();
// We need to move drive head to the CYL track
// "Seek" command
fdc_out (0xf);
// The "Seek" command needs 2 parameters:
// a Head/Drive number and a Track number.
// Since we're working with "A:" drive and 0 head,
// first parameter is 0, second parameter is CYL
fdc_out (0);
fdc_out (CYL);
// Displaying contents of the controller state register
printf ("\n<<<Seeking>>> \t\t");
printf ("State: %02.2X\n", inp(0x3F4));
// Interrupt notifies us about operation end
int_wait();
// Delay for head positioning
tdelay (5);
// In order to check the result of the "Seek" command
// we're sending "Read Interrupt State" command
// Displaying ST0 register and number of a track after
// "Seek" command execution PCN
fdc_out (0x8);
printf ("Interrupt state:\t");
printf (" ST0: %02.2X, \t", fdc_inp());
printf ("PCN: %02.2X\n", fdc_inp());
// For more detailed info of FDC state
// we're sending "Read Media/Drive State" command,
// displaying ST3 register
fdc_out (4);
fdc_out (0);
printf ("Media/Drive state:\t ST3: %02.2X\n", fdc_inp());
// Setting speed of data transfer to 500 KB/sec
outp (0x3F7, 0);
// DMA initialization
dma_init ((void far *)buffer);
// "Read Data" command
fdc_out (0x66);
fdc_out (0x0); // drive 0, head 0
fdc_out (CYL); // track CYL
fdc_out (0); // head 0
fdc_out (1); // sector no 1
// Sending some technical info to FDC.
// This info may be obtained form the Diskette Parameter Table.
// Parameters are:
// - sector size;
// - last sector on a track;
// - gap length;
// - number of bytes to be read/write
fdc_out (fdpt->sec_size);
fdc_out (fdpt->eot);
fdc_out (fdpt->gap_rw);
fdc_out (fdpt->dtl);
// Waiting for interrupt (end of operation)
int_wait();
// Getting and displaying results of
// the "Read Data" command
printf ("\n<<<Reading a sector>>> \n");
printf (" State bytes (ST0,ST1,ST2,C,H,R,N):\n");
for(i=0; i<7; i++) printf("%02.2X\t", (char) fdc_inp());
printf("\n");
// Saving sector to the file
for(i=0; i<512; i++) fputc (buffer[i],sect);
fclose (sect);
// Turning motor off
outp (0x3F2, 0xC);
lll:
_dos_setvect (8+6, oldIRQ6);
}
// Writes a byte to FDC
void fdc_out (unsigned char parm)
{
asm mov dx,3F4h
loop_fdc_out:
asm in al,dx
asm test al,80h // Is controller ready?
asm jz loop_fdc_out // No, waiting...
asm inc dx
asm mov al, parm // Writing the byte
asm out dx, al
}
// Reads a byte from FDC
int fdc_inp (void)
{
asm mov dx,3F4h
loop_fdc_inp:
asm in al,dx
asm test al,80h // Is controller ready?
asm jz loop_fdc_inp // No, waiting...
asm inc dx
asm in al, dx // Reading a byte
return _AL;
}
// Waits for an interrupt generated by FDC
void int_wait (void) {
_enable();
while (IRQ==0) {};
IRQ = 0;
}
void interrupt IRQ6 (__CPPARGS) {
IRQ = 1;
outportb (0x20, 0x20);
}
// DMA initialization routine
void dma_init (void far *buf)
{
unsigned long f_adr;
unsigned sg, of;
// Computing 24-bit address for the data buffer
f_adr = ((unsigned long)FP_SEG(buf) << 4)
+ (unsigned long)FP_OFF(buf);
// Splitting the address into a page number
// and an offset
sg = (f_adr >> 16) & 0xff;
of = f_adr & 0xffff;
// Disabling ints during DMA programming
_disable();
asm mov al,46h // FDC read data command
asm out 12,al // We're working with 16-bit ports.
// Next byte sent to 16-bit port is less significiant
asm out 11,al // DMA mode
asm mov ax,of // Buffer offset LSB
asm out 4,al
asm mov al,ah // Buffer offset MSB
asm out 4,al
asm mov ax,sg // Page number
asm out 81h,al
asm mov ax,511 // Data length
asm out 5,al
asm mov al,ah
asm out 5,al
asm mov al,2 // channel 2 enabled
asm out 10,al
// It's now safe to enable ints
_enable();
}
// This routine returns a Diskette Parameter Table address
DPT far *get_dpt(void)
{
void far * far *ptr;
ptr = (void far * far *)MK_FP(0x0, 0x78);
return (DPT far*)(*ptr);
}
// This routine waits for cnt timer ticks.
// Timer frequency is 18.2 Hz
void tdelay (int cnt)
{
asm push bx
asm push dx
asm push si
asm mov si, cnt
asm mov ah, 0
asm int 1ah
asm mov bx, dx
asm add bx, si
delay_loop:
asm int 1ah
asm cmp dx, bx
asm jne delay_loop
asm pop si
asm pop dx
asm pop bx
}

312
study/hardware/Floppy/floppy/FDDIO.CPP Normal file
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@@ -0,0 +1,312 @@
#ifdef __cplusplus
#define __CPPARGS ...
#else
#define __CPPARGS
#endif
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <dos.h>
#define CYL 0
typedef struct _DPT_
{
unsigned char srt_hut;
unsigned char dma_hlt;
unsigned char motor_w;
unsigned char sec_size;
unsigned char eot;
unsigned char gap_rw;
unsigned char dtl;
unsigned char gap_f;
unsigned char fill_char;
unsigned char hst;
unsigned char mot_start;
} DPT;
DPT far *get_dpt(void);
void fdc_out(unsigned char byte);
int fdc_inp(void);
void int_wait(void);
void dma_init(void far *);
void tdelay(int cnt);
void interrupt IRQ6 (__CPPARGS);
void interrupt (*oldIRQ6) (__CPPARGS);
char buffer[512];
static int IRQ=0;
void main(void)
{
unsigned i;
long l;
char status[7], main_status;
DPT _far *fdpt;
FILE *sect;
printf("\n\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB>஬ <20><><EFBFBD><EFBFBD>"
"\n (C)<29>஫<EFBFBD><E0AEAB> <20>., 1995\n");
oldIRQ6 = _dos_getvect (8+6);
_dos_setvect (8+6, IRQ6);
// <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> 䠩<>, <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0>
// ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> ᠬ<><E1A0AC><EFBFBD> <20><>ࢮ<EFBFBD><E0A2AE> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><>᪥<EFBFBD><E1AAA5>
sect = fopen("!sector.dat","wb+");
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 㪠<><E3AAA0>⥫<EFBFBD> <20><> ⠡<><E2A0A1><EFBFBD><EFBFBD>
// <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
fdpt = get_dpt();
// <20><><EFBFBD><EFBFBD>砥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>᪮<EFBFBD><E1AAAE><EFBFBD><EFBFBD> <20>:
// <20><>। <20>⨬ ࠧ<><E0A0A7>蠥<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>
_enable();
outp(0x3F2, 0x1C);
// <20>믮<EFBFBD><EBAFAE>塞 <20><><EFBFBD><EFBFBD>প<EFBFBD> <20><><EFBFBD> ࠧ<><E0A0A7><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>
tdelay(18);
// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20>᭮<EFBFBD><E1ADAE><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>祭.\t\t");
printf("<EFBFBD>᭮<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>: %02.2X\n",inp(0x3F4));
// <20><>। <20>⥭<EFBFBD><E2A5AD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4><EFBFBD> <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20>㦭<EFBFBD><E3A6AD> <20><>஦<EFBFBD><E0AEA6>, <20> <20><>襬 <20><><EFBFBD>砥 <20><><EFBFBD>
// <20><>஦<EFBFBD><E0AEA6> <20> <20><><EFBFBD><EFBFBD>஬ CYL
// <20>뤠<EFBFBD><EBA4A0> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "<22><><EFBFBD><EFBFBD><EFBFBD>"
fdc_out(0xf);
// <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "<22><><EFBFBD><EFBFBD><EFBFBD>" <20>ॡ<EFBFBD><E0A5A1><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢:
// <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>/<2F><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>஦<EFBFBD><E0AEA6>.
// <20><> ࠡ<>⠥<EFBFBD> <20> <20>㫥<EFBFBD><E3ABA5><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20>:,
// <20><><EFBFBD>⮬<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD> ࠢ<><E0A0A2> 0, <20><><EFBFBD>ன - CYL
fdc_out(0);
fdc_out(CYL);
// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20>᭮<EFBFBD><E1ADAE><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>
printf("\n<<<<3C><><EFBFBD><EFBFBD><EFBFBD>>>> \t\t");
printf("<EFBFBD>᭮<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>: %02.2X\n",inp(0x3F4));
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>樨
int_wait();
// <20><><EFBFBD><EFBFBD>প<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>樮<EFBFBD><E6A8AE>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
tdelay(1);
// <20><><EFBFBD> <20>஢<EFBFBD>ન १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// "<22><><EFBFBD><EFBFBD><EFBFBD>" <20>뤠<EFBFBD><EBA4A0> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// "<22>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>"
// <20>뢮<EFBFBD><EBA2AE><EFBFBD> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>
// ST0 <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>஦<EFBFBD><E0AEA6> <20><>᫥ <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// "<22><><EFBFBD><EFBFBD><EFBFBD>" PCN
fdc_out(0x8);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>:\t");
printf(" ST0: %02.2X, \t", fdc_inp());
printf("PCN: %02.2X\n", fdc_inp());
// <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>㡮<EFBFBD><E3A1AE><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⨪<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>
// <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20>뤠<EFBFBD><EBA4A0> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// "<22>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>", <20>뢮<EFBFBD><EBA2AE><EFBFBD>
// ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> ॣ<><E0A5A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> ST3
fdc_out(4);
fdc_out(0);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>:\t ST3: %02.2X\n",fdc_inp());
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᪮<><E1AAAE><EFBFBD><EFBFBD><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 500 <20><><EFBFBD><EFBFBD><EFBFBD>/<2F>
outp(0x3F7, 0);
// <20><><EFBFBD>樠<EFBFBD><E6A8A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>אַ<EFBFBD><EFACAE>
// <20><><EFBFBD><EFBFBD>㯠 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
dma_init((void far *)buffer);
// <20>뤠<EFBFBD><EBA4A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "<22>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"
fdc_out(0x66);
fdc_out(0x0); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> 0, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0
fdc_out(CYL); // 樫<><E6A8AB><EFBFBD><EFBFBD> CYL
fdc_out(0); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0
fdc_out(1); // <20><><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> - 1
// <20><>।<EFBFBD><E0A5A4><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><>孨<EFBFBD><E5ADA8>᪨<EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD>
// <20><>᪮<EFBFBD><E1AAAE><EFBFBD><EFBFBD>, <20><>६ <20><> <20><> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>.
// <20><><EFBFBD> ⠪<><E2A0AA> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD>:
// - ࠧ<><E0A0A7><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>;
// - <20><><EFBFBD><EFBFBD><EFBFBD> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><> <20><>஦<EFBFBD><E0AEA6>;
// - ࠧ<><E0A0A7><EFBFBD> <20>஬<EFBFBD><E0AEAC><EFBFBD>⪠;
// - <20><>᫮ <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD>/<2F><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD>⮢
fdc_out(fdpt->sec_size);
fdc_out(fdpt->eot);
fdc_out(fdpt->gap_rw);
fdc_out(fdpt->dtl);
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20><>᫥ <20><><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><E8A5AD> <20><><EFBFBD><EFBFBD><EFBFBD>樨
int_wait();
// <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20> <20>뢮<EFBFBD><EBA2AE><EFBFBD> <20><> <20><>࠭ <20><><EFBFBD><EFBFBD><EFBFBD> १<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD>樨 "<22>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"
printf("\n<<<<3C>⥭<EFBFBD><E2A5AD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>>>> \n");
printf(" <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD> (ST0,ST1,ST2,C,H,R,N):\n");
for(i=0; i<7; i++) printf("%02.2X\t", (char) fdc_inp());
printf("\n");
// <20>뢮<EFBFBD><EBA2AE><EFBFBD> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD> <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20> 䠩<>
for(i=0; i<512; i++) fputc(buffer[i],sect);
fclose(sect);
// <20>몫<EFBFBD>砥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
outp(0x3F2, 0xC);
_dos_setvect (8+6, oldIRQ6);
}
// <20>뢮<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD> <20><>᪮<EFBFBD><E1AAAE><EFBFBD><EFBFBD>
void fdc_out(unsigned char parm)
{
asm mov dx,3F4h // <20><><EFBFBD><EFBFBD> <20>᭮<EFBFBD><E1ADAE><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>
loop_fdc_out:
asm in al,dx
asm test al,80h // <20>஢<EFBFBD><E0AEA2>塞 <20><>⮢<EFBFBD><E2AEA2><EFBFBD><EFBFBD><EFBFBD>
asm jz loop_fdc_out // <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>
asm inc dx // <20>뢮<EFBFBD><EBA2AE><EFBFBD> <20><><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
asm mov al, parm // <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>
asm out dx, al
}
// <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><>᪮<EFBFBD><E1AAAE><EFBFBD><EFBFBD>
int fdc_inp(void)
{
asm mov dx,3F4h // <20><><EFBFBD><EFBFBD> <20>᭮<EFBFBD><E1ADAE><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ﭨ<EFBFBD>
loop_fdc_inp:
asm in al,dx
asm test al,80h // <20>஢<EFBFBD><E0AEA2>塞 <20><>⮢<EFBFBD><E2AEA2><EFBFBD><EFBFBD><EFBFBD>
asm jz loop_fdc_inp // <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>
asm inc dx // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0>
asm in al, dx // <20> ॣ<><E0A5A3><EFBFBD><EFBFBD> AX
return _AL;
}
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD>
void int_wait (void) {
_enable();
while (IRQ==0) {};
IRQ = 0;
}
void interrupt IRQ6 (__CPPARGS) {
IRQ = 1;
outportb (0x20, 0x20);
}
// <20><><EFBFBD>樠<EFBFBD><E6A8A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>אַ<EFBFBD><EFACAE> <20><><EFBFBD><EFBFBD>㯠 <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void dma_init(void far *buf)
{
unsigned long f_adr;
unsigned sg, of;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塞 24-ࠧ<>來<EFBFBD><EFA4AD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
f_adr = ((unsigned long)FP_SEG(buf) << 4)
+ (unsigned long)FP_OFF(buf);
// <20><><EFBFBD>饯<EFBFBD>塞 <20><><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>࠭<EFBFBD><E0A0AD><EFBFBD>
// <20> ᬥ饭<E1ACA5><E9A5AD>
sg = (f_adr >> 16) & 0xff;
of = f_adr & 0xffff;
// <20><> <20>६<EFBFBD> <20>ணࠬ<E0AEA3><E0A0AC>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><>אַ<EFBFBD><EFACAE>
// <20><><EFBFBD><EFBFBD>㯠 <20><><EFBFBD><EFBFBD><EFBFBD>頥<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>
_disable();
asm mov al,46h // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>⥭<EFBFBD><E2A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>
// <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
asm out 12,al // <20><><EFBFBD><EFBFBD><EFBFBD> <20>ਣ<EFBFBD><E0A8A3><EFBFBD><EFBFBD>-㪠<><E3AAA0>⥫<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD> ࠡ<><E0A0A1><EFBFBD> <20> 16-ࠧ<>來묨 <20><><EFBFBD>⠬<EFBFBD>.
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>騩 <20><><EFBFBD><EFBFBD>, <20>뢮<EFBFBD><EBA2AE><EFBFBD><EFBFBD><EFBFBD> <20> 16-ࠧ<>來<EFBFBD><EFA4AD>
// <20><><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD> <20><><EFBFBD><EFBFBD>訩
asm out 11,al // <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD> ०<><E0A5A6><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD>
asm mov ax,of // <20><><EFBFBD>饭<EFBFBD><E9A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>訩 <20><><EFBFBD><EFBFBD>
asm out 4,al
asm mov al,ah // <20><><EFBFBD>饭<EFBFBD><E9A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>訩 <20><><EFBFBD><EFBFBD>
asm out 4,al
asm mov ax,sg // <20><><EFBFBD><EFBFBD><EFBFBD> <20><>࠭<EFBFBD><E0A0AD><EFBFBD>
asm out 81h,al
asm mov ax,511 // <20><><EFBFBD><EFBFBD><EFBFBD> <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
asm out 5,al
asm mov al,ah
asm out 5,al
asm mov al,2 // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 2 <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD>
asm out 10,al
// <20><><EFBFBD>樠<EFBFBD><E6A8A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD>,
// ࠧ<><E0A0A7>蠥<EFBFBD> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>.
_enable();
}
/**
* get_dpt
*
* <20><><EFBFBD><EFBFBD>᫨<EFBFBD><E1ABA8> <20><><EFBFBD><EFBFBD><EFBFBD> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
*
* <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>頥<EFBFBD> 㪠<><E3AAA0>⥫<EFBFBD> <20><> ⠡<><E2A0A1><EFBFBD><EFBFBD>
* <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
*
**/
DPT far *get_dpt(void)
{
void far * far *ptr;
ptr = (void far * far *)MK_FP(0x0, 0x78);
return(DPT far*)(*ptr);
}
/**
* tdelay
*
* <20><>ନ஢<E0ACA8><E0AEA2><EFBFBD><EFBFBD> <20>६<EFBFBD><E0A5AC><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>প<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ⠩<><E2A0A9><EFBFBD><EFBFBD>.
*
* <20> <20><><EFBFBD><EFBFBD><EFBFBD>⢥ <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD> <20>㭪樨 <20><>।<EFBFBD><E0A5A4><EFBFBD><EFBFBD><EFBFBD>
* <20><><EFBFBD>⥫쭮<E2A5AB><ECADAE><EFBFBD> <20><><EFBFBD><EFBFBD>প<EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢥ <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>,
* <20><><EFBFBD><EFBFBD>㯠<EFBFBD><E3AFA0><EFBFBD><EFBFBD> <20><> ⠩<><E2A0A9><EFBFBD><EFBFBD> (⠩<><E2A0A9><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <20> <20><><EFBFBD><EFBFBD> ᥪ㭤<E1A5AA> <20>ਬ<EFBFBD>୮ 18 <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD>)
*
**/
void tdelay(int cnt)
{
asm push bx
asm push dx
asm push si
asm mov si, cnt
asm mov ah, 0
asm int 1ah
asm mov bx, dx
asm add bx, si
delay_loop:
asm int 1ah
asm cmp dx, bx
asm jne delay_loop
asm pop si
asm pop dx
asm pop bx
}

BIN
study/hardware/Floppy/floppy/FDDIO.EXE Normal file
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114
study/hardware/Floppy/floppy/FDFORMAT.CPP Normal file
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@@ -0,0 +1,114 @@
#include <stdio.h>
#include <dos.h>
#include <bios.h>
typedef struct _DPT_
{
unsigned char srt_hut;
unsigned char dma_hlt;
unsigned char motor_w;
unsigned char sec_size;
unsigned char eot;
unsigned char gap_rw;
unsigned char dtl;
unsigned char gap_f;
unsigned char fill_char;
unsigned char hst;
unsigned char mot_start;
} DPT;
DPT far *get_dpt(void);
// <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0><EFBFBD>㥬<EFBFBD><E3A5AC> <20><>஦<EFBFBD><E0AEA6>
#define TRK 20
// <20><><EFBFBD> ࠧ<><E0A0A7><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> - 512 <20><><EFBFBD><EFBFBD>
#define SEC_SIZE 2
union REGS inregs, outregs;
char diskbuf[512];
void main(void)
{
struct diskinfo_t di;
unsigned status;
unsigned char old_sec_size,
old_fill_char, old_eot;
int i, j;
DPT _far *dpt_ptr;
// <20><><EFBFBD><EFBFBD>砥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
dpt_ptr = get_dpt();
// <20><><EFBFBD>࠭塞 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> <20><> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢
old_sec_size = dpt_ptr->sec_size;
old_fill_char = dpt_ptr->fill_char;
old_eot = dpt_ptr->eot;
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
// <20><><EFBFBD> ࠧ<><E0A0A7><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, ᨬ<><E1A8AC><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>
// <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ ᥪ<><E1A5AA>஢ <20><> <20><>஦<EFBFBD><E0AEA6>
dpt_ptr->sec_size = SEC_SIZE;
dpt_ptr->fill_char = 0xf8;
dpt_ptr->eot = 15;
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⨯ <20><>᪥<EFBFBD><E1AAA5>
inregs.h.ah = 0x17;
inregs.h.al = 3; // <20><>᪥<EFBFBD><E1AAA5> <20><>᮪<EFBFBD><E1AEAA> <20><><EFBFBD>⭮<EFBFBD><E2ADAE><EFBFBD>
// <20> <20><><EFBFBD><EFBFBD> <20><>᮪<EFBFBD><E1AEAA> <20><><EFBFBD>⭮<EFBFBD><E2ADAE><EFBFBD>
inregs.h.dl = 0;
int86(0x13, &inregs, &outregs);
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>।<EFBFBD> <20><><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
inregs.h.ah = 0x18;
inregs.h.ch = TRK;
inregs.h.cl = dpt_ptr->eot;
inregs.h.dl = 0;
int86(0x13, &inregs, &outregs);
// <20><><EFBFBD><EFBFBD><EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD> <20><><EFBFBD>
// <20>㭪樨 <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
di.drive = 0;
di.head = 0;
di.track = TRK;
di.sector = 1;
di.nsectors = 15;
di.buffer = (void far*)diskbuf;
// <20><><EFBFBD><EFBFBD><EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0> <20><><EFBFBD> 15 ᥪ<><E1A5AA>஢
for(i=0, j=1; j<16; i += 4, j++)
{
diskbuf[i] = TRK;
diskbuf[i+1] = 0;
diskbuf[i+2] = j;
diskbuf[i+3] = SEC_SIZE;
}
// <20><><EFBFBD>뢠<EFBFBD><EBA2A0> <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><>஦<EFBFBD><E0AEA6>
status = _bios_disk(_DISK_FORMAT, &di) >> 8;
printf("\n<EFBFBD><EFBFBD>ଠ<EFBFBD><EFBFBD>஢<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>訫<EFBFBD><E8A8AB><EFBFBD> "
"<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>: %d", status);
// <20><><EFBFBD><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> <20>
// ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
dpt_ptr->sec_size = old_sec_size;
dpt_ptr->fill_char = old_fill_char;
dpt_ptr->eot = old_eot;
}
/**
* get_dpt
*
* <20><><EFBFBD><EFBFBD>᫨<EFBFBD><E1ABA8> <20><><EFBFBD><EFBFBD><EFBFBD> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
*
* <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>頥<EFBFBD> 㪠<><E3AAA0>⥫<EFBFBD> <20><> ⠡<><E2A0A1><EFBFBD><EFBFBD>
* <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
*
**/
DPT far *get_dpt(void)
{
void far * far *ptr;
ptr = (void far * far *)MK_FP(0x0, 0x78);
return(DPT far*)(*ptr);
}

1079
study/hardware/Floppy/floppy/FLOP.TXT Normal file
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410
study/hardware/Floppy/floppy/FLOPPY.TXT Normal file
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@@ -0,0 +1,410 @@
NEC <20>PD765 - Floppy Disk Controller - 8272A
PS/2 FDC Diskette Status Register A at 3F0h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F0h PS/2 Disk Status Register A (read-only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> direction
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> write protect
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> index
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> head 1 select
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> track 0
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> step
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> second drive installed
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> interrupt pending
PS/2 FDC Diskette Status Register B at 3F1h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F1h PS/2 Disk Status Register B (read-only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> motor enable 0
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> motor enable 1
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> write enable
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> read data (toggles w/positive transition in -RD DATA)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> write data (toggles w/positive transition in WR DATA)
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> drive select
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> reserved
FDC Digital Output Register at 3F2h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> port 3F2h (write only)
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive select (0=A, 1=B, 2=floppy C, ...)
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = FDC enable, 0 = hold FDC at reset
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = DMA & I/O interface enabled (reserved PS/2)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive A motor on
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive B motor on
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive C motor on; (reserved PS/2)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 = turn floppy drive D motor on; (reserved PS/2)
- used to control drive motors, drive selection, and feature enable
- PS/2 only uses bit 0 for floppy drive select; bit 1 is reserved
- PS/2 only uses bits 5 & 4 for motor enable; bits 7&6 are reserved
- all DOR bits are cleared during controller reset
FDC Main Status Register at 3F4h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> port 3F4h (read only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> floppy drive 0 in seek mode/busy
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive 1 in seek mode/busy
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive 2 in seek mode/busy (reserved PS/2)
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> floppy drive 3 in seek mode/busy (reserved PS/2)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDC read or write command in progress
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDC is in non-DMA mode
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O direction; 1 = FDC to CPU; 0 = CPU to FDC
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> data reg ready for I/O to/from CPU (request for master)
FDC Command Status Register 0 at 3F5h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Command Status Register 0 at port 3F5h
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unit selected at interrupt (0=A, 1=B, 2=...)
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> head number at interrupt (head 0 or 1)
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> not ready on read/write or SS access to head 1
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> equipment check (see note)
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> set to 1 when FDD completes a seek command
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> last command status (see below)
Bits
76 Last Command Status
00 command terminated successfully
01 command execution started but terminated abnormally
10 invalid command issued
11 command terminated abnormally due to a change in state of
the Ready Signal from the FDC (reserved on PS/2)
- equipment check can occur if FDD signals a fault or track zero is
not found after 77 steps on a recalibrate command
- PS/2 only uses bits 1-0 for drive (values are 01b and 10b)
FDC Command Status Register 1 at 3F5h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Command Status Register 1 at port 3F5h
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> FDC cannot find ID address mark (see reg 2)
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> write protect detected during write
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDC cannot find sector ID
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unused (always zero)
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> over-run; FDC not serviced in reasonable time
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> data error (CRC) in ID field or data field
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unused (always zero)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> end of cylinder; sector# greater than sectors/track
- bit 0 of Status Register 1 and bit 4 of Status Register 2 are
related and mimic each other
FDC Command Status Register 2 at 3F5h (all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Command Status Register 2 at port 3F5h
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> missing address mark in data field
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> bad cylinder, ID not found and Cyl Id=FFh
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> scan command failed, sector not found in cylinder
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> scan command equal condition satisfied
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> wrong cylinder detected
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CRC error detected in sector data
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> sector with deleted data address mark detected
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> unused (always zero)
- bit 0 of Status Register 1 and bit 4 of Status Register 2 are
related and mimic each other
FDC Command Status Register 3 at 3F5h (FDD status, all systems)
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> Floppy Disk Drive Status at port 3F5h
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD unit selected status (0=A, 1=B, 2=...)
<20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD side head select status (0=head 0, 1=head 1)
<20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD two sided status signal
<20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD track zero status signal
<20> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD ready status signal
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD write protect status signal
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FDD fault status signal
PS/2 FDC Digital Input Register at 3F7h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F7h PS/2 Digital Input Register (read only)
<20> <20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD> high density select
<20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> reserved
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> diskette change
PS/2 FDC Configuration Control Register at 3F7h
<09>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> 3F7h PS/2 Config. Control Register (write only)
<20> <20> <20> <20> <20> <20> <20><><EFBFBD><EFBFBD><EFBFBD> DRC1, DRC0 (see below)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> reserved
DRC1 DRC0
0 0 500000 bit per second mode
0 1 reserved
1 0 250000 bit per second mode
1 1 reserved
- Digital Input Register is used to sense the state of the
(-diskette change) and the (-high density select) signals
- Configuration Control Register is used to set the transfer rate
FDC Programming Considerations
Three phases of command execution:
1. Command phase; commands are sent from the CPU to the FDC via
port 3F5h; bit 6 of the Status Register at 3F4h must be zero
2. Execution phase; FDC executes instruction & generates INT 6
3. Result phase; status and other information is available to CPU;
INT 6 sets bit 7 of BIOS Data Area location 40:3E which can
be polled for completion status
Example of a read operation:
1. turn disk motor on and set delay time for drive spin up
2. perform seek operation; wait for disk interrupt
3. prepare DMA chip to move data to memory
4. send read command and wait for transfer complete interrupt
5. read status information
6. turn disk motor off
Floppy Diskette Controller Operations (15 commands)
Read Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 0 0 1 1 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Read Deleted Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 0 1 1 0 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Write Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF 0 0 0 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Write Deleted Data D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF 0 0 1 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Read a Track D7 D6 D5 D4 D3 D2 D1 D0
(Diagnostic)
command byte 0: 0 MF SK 0 0 0 1 0
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: data length (if cmd byte 5==0)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Read ID D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 MF 0 0 1 0 1 0
command byte 1: ? ? ? ? ? HD US1 US0
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Format a Track D7 D6 D5 D4 D3 D2 D1 D0
(Write Sector IDs)
command byte 0: 0 MF 0 0 1 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: bytes per sector
command byte 3: sectors per track
command byte 4: gap 3 length
command byte 5: filler pattern to write in each byte
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Scan Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 0 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Scan Low or Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 1 0 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Scan High or Equal D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: MT MF SK 1 1 1 0 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: cylinder number
command byte 3: head number
command byte 4: sector number
command byte 5: bytes per sector
command byte 6: end of track (last sector in track)
command byte 7: gap 3 length
command byte 8: scan test (1=scan contiguous, 2=scan alternate)
result byte 0: status register 0
result byte 1: status register 1
result byte 2: status register 2
result byte 3: cylinder number
result byte 4: head number
result byte 5: sector number
result byte 6: bytes per sector
Recalibrate D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 0 0 0 0 1 1 1
command byte 1: ? ? ? ? ? 0 US1 US0
returns nothing
Sense Interrupt D7 D6 D5 D4 D3 D2 D1 D0
Status
command byte 0: 0 0 0 0 1 0 0 0
result byte 0: status register 0
result byte 1: present cylinder number
Specify Step & D7 D6 D5 D4 D3 D2 D1 D0
Head Load
command byte 0: 0 0 0 0 0 0 1 1
command byte 1: step rate time <20> head unload time
command byte 2: <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head load time<6D><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ND
returns nothing
Sense Drive D7 D6 D5 D4 D3 D2 D1 D0
Status
command byte 0: 0 0 0 0 0 1 0 0
command byte 1: ? ? ? ? ? HD US1 US0
result byte 0: status register 3
Seek D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: 0 0 0 0 1 1 1 1
command byte 1: ? ? ? ? ? HD US1 US0
command byte 2: new cylinder number
returns nothing
<20>PD765 Version D7 D6 D5 D4 D3 D2 D1 D0
command byte 0: ? ? ? 1 0 0 0 0
result byte 0: status register 0
90h = <20>PD765B; 80h = <20>PD765A or <20>PD765A-2
Invalid Command
result byte 0: status register 0 (value of 80h)
Key to Abbreviations
HD = Head Number Selected SK = SKip Deleted-data address mark
MT = Multi-Track US0 = drive select bit 0
MF = MFM mode US1 = drive select bit 1
ND = Non-DMA mode
Head Load Time = 2 to 254ms in 2ms increments
Head Unload Time = 16 to 240ms in 16ms increments
Step Rate Time = 1 to 16ms in 1ms increments
- PS/2 systems use the 8272A diskette controller which is software
and port compatible with the NEC <20>PD765
- accessed through ports 3F0h-3F7h; NEC <20>PD765 is accessed through
ports 3F2h, 3F4h and 3F5h; the 8272A uses ports 3F0h, 3F1h,
3F2h, 3F4h, 3F5h and 3F7h
- data, command and status registers are all accessed through
port 3F5h a register stack with one address presented to the bus
- bit 7 of BIOS Data Area byte 40:3E can be polled to determine
if a disk operation has completed; this bit is set by the
interrupt handler when the operation has completed; it should
be reset before continuing on with the next FDC operation

16
study/hardware/Floppy/floppy/FLOPPY~1.TXT Normal file
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These are from the Gospel according to Saint Peter:
Format Size Cyls Heads Sec/Trk FATs Sec/FAT Sec/Root Media
160K 5 1/4 40 1 8 2 ? ? FE
180K 5 1/4 40 1 9 2 ? 4 FC
320K 5 1/4 40 2 8 2 ? ? FF
360K 5 1/4 40 2 9 2 4 7 FD
1.2M 5 1/4 80 2 15 2 14 14 F9
720K 3 1/2 80 2 9 2 6 7 F9
1.44M 3 1/2 80 2 18 2 18 14 F0
2.88M 3 1/2 80 2 36 2 ? ? ?
Does anybody have the straight poop on the 2.88M variety? (I could
care less about the double-density, 5 1/4" formats.)
raster@indirect.com

167
study/hardware/Floppy/floppy/FMT256.CPP Normal file
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#include <stdio.h>
#include <conio.h>
#include <dos.h>
#include <stdlib.h>
#include <bios.h>
#include <string.h>
typedef struct _DPT_
{
unsigned char srt_hut;
unsigned char dma_hlt;
unsigned char motor_w;
unsigned char sec_size;
unsigned char eot;
unsigned char gap_rw;
unsigned char dtl;
unsigned char gap_f;
unsigned char fill_char;
unsigned char hst;
unsigned char mot_start;
} DPT;
DPT far *get_dpt(void);
// <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0><EFBFBD>㥬<EFBFBD><E3A5AC> <20><>஦<EFBFBD><E0AEA6>
#define TRK 20
// <20><><EFBFBD> ࠧ<><E0A0A7><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> - 256 <20><><EFBFBD><EFBFBD>
#define SEC_SIZE 1
union REGS inregs, outregs;
char diskbuf[512];
char diskbuf1[512];
char buf[80];
int main(void)
{
struct diskinfo_t di;
unsigned status;
unsigned char old_sec_size,
old_fill_char, old_eot;
int i, j;
DPT far *dpt_ptr;
printf("\n<EFBFBD>ணࠬ<EFBFBD><EFBFBD> 㭨<>⮦<EFBFBD><E2AEA6> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD>"
"\n20-<2D> <20><>஦<EFBFBD><E0AEA6> <20><>᪠ <20>:."
"\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>? (Y,N)\n");
i = getch();
if((i != 'y') && (i != 'Y'))
return(-1);
// <20><><EFBFBD><EFBFBD>砥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
dpt_ptr = get_dpt();
// <20><><EFBFBD>࠭塞 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> <20><> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢
old_sec_size = dpt_ptr->sec_size;
old_fill_char = dpt_ptr->fill_char;
old_eot = dpt_ptr->eot;
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
// <20><><EFBFBD> ࠧ<><E0A0A7><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, ᨬ<><E1A8AC><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>
// <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ ᥪ<><E1A5AA>஢ <20><> <20><>஦<EFBFBD><E0AEA6>
dpt_ptr->sec_size = SEC_SIZE;
dpt_ptr->fill_char = 0x77;
dpt_ptr->eot = 18;
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⨯ <20><>᪠
inregs.h.ah = 0x17;
inregs.h.al = 3;
inregs.h.dl = 0;
int86(0x13, &inregs, &outregs);
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>।<EFBFBD> <20><><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
inregs.h.ah = 0x18;
inregs.h.ch = TRK;
inregs.h.cl = dpt_ptr->eot;
inregs.h.dl = 0;
int86(0x13, &inregs, &outregs);
// <20><><EFBFBD><EFBFBD><EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD>
// <20><><EFBFBD> <20>㭪樨 <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
di.drive = 0;
di.head = 0;
di.track = TRK;
di.sector = 1;
di.nsectors = 18;
di.buffer = diskbuf;
// <20><><EFBFBD><EFBFBD><EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0> <20><><EFBFBD> 18 ᥪ<><E1A5AA>஢
for(i=0, j=1; j<19; i += 4, j++)
{
diskbuf[i] = TRK;
diskbuf[i+1] = 0;
diskbuf[i+2] = j;
diskbuf[i+3] = SEC_SIZE;
}
// <20><><EFBFBD>뢠<EFBFBD><EBA2A0> <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><>஦<EFBFBD><E0AEA6>
status = _bios_disk(_DISK_FORMAT, &di) >> 8;
printf("\n<EFBFBD><EFBFBD>ଠ<EFBFBD><EFBFBD>஢<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>訫<EFBFBD><E8A8AB><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>: %d",
status);
// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0><EFBFBD> <20> <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD>
printf("\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ப<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "
"<EFBFBD> <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD>,"
"\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ப<EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ॢ<EFBFBD><E0A5A2><EFBFBD><EFBFBD><EFBFBD> 80 <20><><EFBFBD>⮢"
"\n->");
gets(buf);
strcpy(diskbuf,buf);
di.drive = 0;
di.head = 0;
di.track = 20;
di.sector = 1;
di.nsectors = 1;
di.buffer = diskbuf;
status = _bios_disk(_DISK_WRITE, &di) >> 8;
if(status)
{
printf("\n<EFBFBD>訡<EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD>: %d",
status);
return(-1);
}
di.drive = 0;
di.head = 0;
di.track = 20;
di.sector = 1;
di.nsectors = 1;
di.buffer = diskbuf1;
for(i = 0; i < 3; i++)
{
status = _bios_disk(_DISK_READ, &di) >> 8;
if(!status) break;
}
printf("\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⠭<EFBFBD> <20><> <20><><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD>⭮<EFBFBD><E2ADAE> ᥪ<><E1A5AA><EFBFBD><EFBFBD>:\n%s\n",
diskbuf1);
// <20><><EFBFBD><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> <20>
// ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
dpt_ptr->sec_size = old_sec_size;
dpt_ptr->fill_char = old_fill_char;
dpt_ptr->eot = old_eot;
return(0);
}
/**
* get_dpt
*
* <20><><EFBFBD><EFBFBD>᫨<EFBFBD><E1ABA8> <20><><EFBFBD><EFBFBD><EFBFBD> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
*
* <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>頥<EFBFBD> 㪠<><E3AAA0>⥫<EFBFBD> <20><> ⠡<><E2A0A1><EFBFBD><EFBFBD>
* <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
*
**/
DPT far *get_dpt(void)
{
void far * far *ptr;
ptr = (void far * far *)MK_FP(0x0, 0x78);
return(DPT far*)(*ptr);
}

184
study/hardware/Floppy/floppy/FMT81TRK.CPP Normal file
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@@ -0,0 +1,184 @@
#include <dos.h>
#include <stdio.h>
#include <conio.h>
#include <malloc.h>
#include <errno.h>
typedef struct _EBPB_
{
unsigned sectsize;
char clustsize;
unsigned ressecs;
char fatcnt;
unsigned rootsize;
unsigned totsecs;
char media;
unsigned fatsize;
unsigned seccnt;
unsigned headcnt;
unsigned hiddensec_low;
unsigned hiddensec_hi;
unsigned long drvsecs;
} EBPB;
typedef struct _TRK_LY_
{
unsigned no;
unsigned size;
} TRK_LY;
typedef struct _DPB_
{
char spec;
char devtype;
unsigned devattr;
unsigned numofcyl;
char media_type;
EBPB bpb;
char reserved[6];
unsigned trkcnt;
TRK_LY trk[100];
} DPB;
typedef struct _DPB_FORMAT_
{
char spec;
unsigned head;
unsigned track;
} DPB_FORMAT;
int main(void)
{
union REGS reg;
struct SREGS segreg;
DPB far *dbp;
DPB_FORMAT far *dbp_f;
int sectors, i;
printf("\n<EFBFBD>ணࠬ<EFBFBD><EFBFBD> 㭨<>⮦<EFBFBD><E2AEA6> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD>"
"\n81-<2D> <20><>஦<EFBFBD><E0AEA6> <20><>᪠ <20>:."
"\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>? (Y,N)\n");
i = getch();
if((i != 'y') && (i != 'Y'))
return(-1);
// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><><EFBFBD>ன<EFBFBD>⢠
dbp = (DPB far*)farmalloc(sizeof(DPB));
// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><><EFBFBD>ன<EFBFBD>⢠,
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20>ᯮ<EFBFBD>짮<EFBFBD><ECA7AE><EFBFBD> <20><><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
dbp_f = (DPB_FORMAT far*)
farmalloc(sizeof(DPB_FORMAT));
if(dbp == NULL || dbp_f == NULL)
{
printf("\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
return(-1);
}
// <20><><EFBFBD><EFBFBD>砥<EFBFBD> ⥪<>騥 <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD> <20><>᪠ <20>:
dbp->spec = 0;
reg.x.ax = 0x440d;
reg.h.bl = 1;
reg.x.cx = 0x0860;
reg.x.dx = FP_OFF(dbp);
segreg.ds = FP_SEG(dbp);
intdosx(&reg, &reg, &segreg);
if(reg.x.cflag != 0)
{
printf("\n<EFBFBD>訡<EFBFBD><EFBFBD>: %d", reg.x.ax);
return(-1);
}
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塞 <20><><EFBFBD><EFBFBD> <20><>ଥ<EFBFBD>஢ <20><><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
dbp->spec = 5;
// <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><> BPB <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ ᥪ<><E1A5AA>஢ <20><> <20><>஦<EFBFBD><E0AEA6>
sectors = dbp->bpb.seccnt;
// <20><><EFBFBD><EFBFBD><EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⠡<><E2A0A1><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD> <20><>஦<EFBFBD><E0AEA6>
// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ ᥪ<><E1A5AA>஢ <20><> <20><>஦<EFBFBD><E0AEA6>
dbp->trkcnt = sectors;
// <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><> <20><>஦<EFBFBD><E0AEA6> <20> ⠡<><E2A0A1><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20> ࠧ<><E0A0A7><EFBFBD>.
for(i = 0; i < sectors; i++)
{
dbp->trk[i].no = i+1;
dbp->trk[i].size = 512;
}
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>᪠ <20>:
reg.x.ax = 0x440d;
reg.h.bl = 1;
reg.x.cx = 0x0840;
reg.x.dx = FP_OFF(dbp);
segreg.ds = FP_SEG(dbp);
intdosx(&reg, &reg, &segreg);
if(reg.x.cflag != 0)
{
printf("\n<EFBFBD>訡<EFBFBD><EFBFBD>: %d", reg.x.ax);
return(-1);
}
// <20><>⮢<EFBFBD><E2AEA2> <20><><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><><EFBFBD>ன<EFBFBD>⢠,
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20>ᯮ<EFBFBD>짮<EFBFBD><ECA7AE><EFBFBD> <20><><EFBFBD> <20>맮<EFBFBD><EBA7AE>
// <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20>஢<EFBFBD>ન <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
// <20><>஦<EFBFBD><E0AEA6>
dbp_f->spec = 1;
dbp_f->head = 0;
dbp_f->track = 81;
reg.x.ax = 0x440d;
reg.h.bl = 1;
reg.x.cx = 0x0842;
reg.x.dx = FP_OFF(dbp_f);
segreg.ds = FP_SEG(dbp_f);
intdosx(&reg, &reg, &segreg);
if(reg.x.cflag != 0)
{
printf("\n<EFBFBD>訡<EFBFBD><EFBFBD>: %d", reg.x.ax);
return(-1);
}
// <20>᫨ 㪠<><E3AAA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD> <20><>஦<EFBFBD><E0AEA6> <20><><EFBFBD><EFBFBD><EFBFBD>ন<EFBFBD><E0A6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
// <20><><EFBFBD><EFBFBD> ᯥ樠<E1AFA5><E6A8A0><EFBFBD><EFBFBD><EFBFBD> <20>㭪権 <20>㤥<EFBFBD> ᮤ<>ঠ<EFBFBD><E0A6A0> 0.
// <20>஢<EFBFBD><E0AEA2>塞 <20><><EFBFBD>
if(dbp_f->spec != 0)
{
printf("\n<EFBFBD><EFBFBD>ଠ<EFBFBD> <20><>஦<EFBFBD><E0AEA6> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>ন<EFBFBD><E0A6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
return(-1);
}
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塞 <20><><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
dbp_f->spec = 0;
dbp_f->head = 0;
dbp_f->track = 81;
// <20><>ଠ<EFBFBD><E0ACA0><EFBFBD>㥬 <20><>஦<EFBFBD><E0AEA6> <20> <20><><EFBFBD><EFBFBD>஬ 81, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0
reg.x.ax = 0x440d;
reg.h.bl = 1;
reg.x.cx = 0x0842;
reg.x.dx = FP_OFF(dbp_f);
segreg.ds = FP_SEG(dbp_f);
intdosx(&reg, &reg, &segreg);
if(reg.x.cflag != 0)
{
printf("\n<EFBFBD>訡<EFBFBD><EFBFBD>: %d", reg.x.ax);
return(-1);
}
// <20>᢮<EFBFBD><E1A2AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
farfree(dbp);
farfree(dbp_f);
return(0);
}

126
study/hardware/Floppy/floppy/FMTINTRL.CPP Normal file
View File

@@ -0,0 +1,126 @@
#include <stdio.h>
#include <conio.h>
#include <dos.h>
#include <stdlib.h>
#include <bios.h>
// <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0><EFBFBD>㥬<EFBFBD><E3A5AC> <20><>஦<EFBFBD><E0AEA6>
#define TRK 20
// <20><><EFBFBD> ࠧ<><E0A0A7><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> - 512 <20><><EFBFBD><EFBFBD>
#define SEC_SIZE 2
typedef struct _DPT_
{
unsigned char srt_hut;
unsigned char dma_hlt;
unsigned char motor_w;
unsigned char sec_size;
unsigned char eot;
unsigned char gap_rw;
unsigned char dtl;
unsigned char gap_f;
unsigned char fill_char;
unsigned char hst;
unsigned char mot_start;
} DPT;
DPT far *get_dpt(void);
union REGS inregs, outregs;
char diskbuf[512];
int main(void)
{
struct diskinfo_t di;
unsigned status;
unsigned char old_sec_size,
old_fill_char, old_eot;
int i, j;
DPT far *dpt_ptr;
printf("\n<EFBFBD>ணࠬ<EFBFBD><EFBFBD> 㭨<>⮦<EFBFBD><E2AEA6> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD>"
"\n20-<2D> <20><>஦<EFBFBD><E0AEA6> <20><>᪠ <20>:."
"\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>? (Y,N)\n");
i = getch();
if((i != 'y') && (i != 'Y'))
return(-1);
// <20><><EFBFBD><EFBFBD>砥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
dpt_ptr = get_dpt();
// <20><><EFBFBD>࠭塞 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> <20><> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢
old_sec_size = dpt_ptr->sec_size;
old_fill_char = dpt_ptr->fill_char;
old_eot = dpt_ptr->eot;
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
// <20><><EFBFBD> ࠧ<><E0A0A7><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD>, ᨬ<><E1A8AC><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>
// <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ ᥪ<><E1A5AA>஢ <20><> <20><>஦<EFBFBD><E0AEA6>
dpt_ptr->sec_size = SEC_SIZE;
dpt_ptr->fill_char = 0xf6;
dpt_ptr->eot = 18;
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⨯ <20><>᪠
inregs.h.ah = 0x17;
inregs.h.al = 3;
inregs.h.dl = 0;
int86(0x13, &inregs, &outregs);
// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>।<EFBFBD> <20><><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
inregs.h.ah = 0x18;
inregs.h.ch = TRK;
inregs.h.cl = dpt_ptr->eot;
inregs.h.dl = 0;
int86(0x13, &inregs, &outregs);
// <20><><EFBFBD><EFBFBD><EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD>
// <20><><EFBFBD> <20>㭪樨 <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
di.drive = 0;
di.head = 0;
di.track = TRK;
di.sector = 1;
di.nsectors = 18;
di.buffer = diskbuf;
// <20><><EFBFBD><EFBFBD><EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0> <20><><EFBFBD> 18 ᥪ<><E1A5AA>஢
// <20>ᯮ<EFBFBD><E1AFAE><EFBFBD>㥬 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>冷<EFBFBD> <20><>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA>஢
// <20><> <20><>஦<EFBFBD><E0AEA6>
for(i=0, j=18; j>0; i += 4, j--)
{
diskbuf[i] = TRK;
diskbuf[i+1] = 0;
diskbuf[i+2] = j;
diskbuf[i+3] = SEC_SIZE;
}
// <20><><EFBFBD>뢠<EFBFBD><EBA2A0> <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20><>஦<EFBFBD><E0AEA6>
status = _bios_disk(_DISK_FORMAT, &di) >> 8;
printf("\n<EFBFBD><EFBFBD>ଠ<EFBFBD><EFBFBD>஢<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>訫<EFBFBD><E8A8AB><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>: %d",
status);
// <20><><EFBFBD><EFBFBD>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD> <20>
// ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
dpt_ptr->sec_size = old_sec_size;
dpt_ptr->fill_char = old_fill_char;
dpt_ptr->eot = old_eot;
return(0);
}
/**
* get_dpt
*
* <20><><EFBFBD><EFBFBD>᫨<EFBFBD><E1ABA8> <20><><EFBFBD><EFBFBD><EFBFBD> ⠡<><E2A0A1><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
*
* <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>頥<EFBFBD> 㪠<><E3AAA0>⥫<EFBFBD> <20><> ⠡<><E2A0A1><EFBFBD><EFBFBD>
* <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><>᪥<EFBFBD><E1AAA5>
*
**/
DPT far *get_dpt(void)
{
void far * far *ptr;
ptr = (void far * far *)MK_FP(0x0, 0x78);
return(DPT far*)(*ptr);
}

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<Picture>
<Picture: Logo>AboutAdvertisingAwardsContact usNewsMessageboards<Picture>
Back to messagelist
Re: Disk access...
Posted by ports on February 22, 2000 at 12:10:14 PM
TITLE Freehafer's use ports to read floppy disk A: sectors program
;
; Bibliography
;
; 1. Help with DMA programming is found in The Indespensable PC Hardware
; Book, Messmer, Addison-Wesley Longman Limited, <20>1997, page 721.
;
; 2. Help with port programming is found in The Undocumented PC,
; Gilluwe, Addison-Wesley Developers Press, <20>1997, pages 525, 1057.
;
;........................................................................
msg MACRO msgout ;
mov AH, 09h ; function 09h
lea DX, msgout ; DX holds message
int 21h ; display string interupt
ENDM ;
;........................................................................
.MODEL small ; directive placing all memory in one segment
;........................................................................
.stack 2000h ;
.data ;
Message DB 0Ah,0Dh," This program uses ports to read a sector of A:",0Ah,0Dh,'$'
CW DB 10,13,10,13," (C)1999 Inniea Publishing Company! R",153,142,"K NOG!",0Ah,0Dh," Freehafer's Read Sector With Ports Program Is Terminated! ",0Ah,0Dh,0Ah,0Dh,'$'
msgENT DB 10,13,10,13," Enter a 'y' or 'Y' if you want to display",10,13," sector contents on screen: ",'$'
CRLF DB 10,13,'$'
msgLine DB 10,13," **************SECTOR CONTENTS***************",10,13,'$'
msgSECTOR DB 10,13," Enter sector number 1 to 18: ",'$'
msgTRACK DB 10,13," Enter track number 0 to 79: ",'$'
msgSIDE DB 10,13," Enter side number 0 to 1: ",'$'
NUM DW 0
counter DW 0
buffer DB 512 dup('t')
buffy DB 512 dup(?)
on_off_switch EQU 1Ch ; motor_on
compare_s DB 0 ; send_controller
compare_r DB 0 ; receive_controller
compare_x DB 0 ; recalibrate_a
compare_t DB 0 ; seek_track_side
command_byte DB ? ;
result_byte DB ? ;
side DB 0 ;
track DB 0 ;
sector DB 0 ;
INPNUM DW 0 ;
dma_access_opperation_code DB ?
dma_low_order_count_byte DB ?
dma_high_order_count_byte DB ?
;........................................................................
.code ;
;........................................................................
start: ; begin algorithm
;........................................................................
; ; move data segment into DS
;........................................................................
mov AX, @data ; base address
mov DS, AX ; of data segment
;........................................................................
; ; get inputs
;........................................................................
msg Message ; describe what program does
;........................................................................
msg msgSECTOR ; sector
CALL InputInt ;
mov AL, byte ptr NUM ;
mov sector, AL ;
msg msgTRACK ; track
CALL InputInt ;
mov AL, byte ptr NUM ;
mov track, AL ;
msg msgSIDE ; side
CALL InputInt ;
mov AL, byte ptr NUM ;
mov side, AL ;
;........................................................................
; ; read media id of A:
;........................................................................
mov AL, 00h ; drive A:
LEA BX, buffy ; ES:BX
mov CX, 01h ; number of sectors to read
mov DX, 00h ; boot sector
int 25h ; absolute read interrupt
;........................................................................
; ; delay
;........................................................................
mov AX, 0 ;
mov counter, AX ;
first_loop: ; beep delay
mov AH, 02h ;
mov DL, 07h ;
int 21h ;
.IF(counter < 15) ;
;........................................................................
mov AH, 86h ; system wait function
mov CX, 02h ; CX = 1E DX = 8480h for 2 seconds
mov DX, 00h ; 131.072 milliseconds
int 15h ; added dealy
;........................................................................
inc counter ;
jmp first_loop ;
.ENDIF ;
;........................................................................
; ; ES:BX
;........................................................................
mov BX, seg buffer ;
mov ES, BX ;
mov BX, offset buffer ;
;........................................................................
;***********************************; DIRECT MEMORY ACCESS
mov AL, 56h ;
mov dma_access_opperation_code, AL
mov AL, 0FFh ;
mov dma_low_order_count_byte, AL
mov AL, 1h ;
mov dma_high_order_count_byte, AL
call dma_access ;
;........................................................................
CALL motor_on ;
CALL recalibrate_a ; retract head to track 0
CALL seek_track_side ; seek desired track and side
CALL read_sector_id ; verify side
;........................................................................
;***********************************; WRITE TO CONTROLLER
;........................................................................
; ; Send Byte 0 Command To Port
;........................................................................
mov AL, 46h ; 70d = 46h = 0100 0110b read sector command
mov command_byte, AL ;
CALL send_controller ; send command to port
;........................................................................
; ; Send Byte 1
;........................................................................
mov CL, 4 ;
mov AL, side ; alternate between 0x00 and 0x04
mul CL ; 0000 0(head = 0 or 1)(drive a: = 0 0)
mov command_byte, AL ;
CALL send_controller ; send command to port
;........................................................................
; ; Send Byte 2
;........................................................................
mov AL, track ;
mov command_byte, AL ; cylinder
CALL send_controller ;
;........................................................................
; ; Send Byte 3
;........................................................................
mov AL, side ; head
mov command_byte, AL ;
CALL send_controller ; send command to port
;........................................................................
; ; Send Byte 4
;........................................................................
mov AL, sector ; sector # up to 37 max
mov command_byte, AL ;
CALL send_controller ;
;........................................................................
; ; Send Byte 5
;........................................................................
mov AL, 2 ; Byte 5 = 2 for 512 bytes per sector
mov command_byte, AL ;
CALL send_controller ;
;........................................................................
; ; Send Byte 6
;........................................................................
mov AL, 12h ; 18d = last sector on track
mov command_byte, AL ;
CALL send_controller ;
;........................................................................
; ; Send Byte 7
;........................................................................
mov AL, 1Bh ; 3 1/2" write or read = 1Bh = 27d = 0001 1011b
mov command_byte, AL ; gap
CALL send_controller ;
;........................................................................
; ; Send Byte 8
;........................................................................
mov AL, 0h ; 0 or 0FFh = 255d unused = 01111111b
mov command_byte, AL ;
CALL send_controller ;
;........................................................................
;***********************************; READ FROM CONTROLLER
;........................................................................
CALL receive_controller ;
CALL receive_controller ;
CALL receive_controller ;
CALL receive_controller ;
CALL receive_controller ;
CALL receive_controller ;
CALL receive_controller ;
;........................................................................
CALL motor_off
;........................................................................
;***********************************; DISPLAY SECTOR CONTENTS
;........................................................................
; ; display sector contents
;........................................................................
msg msgENT ; do you want boot sector contents displayed
mov AH, 01h ; read character function
int 21h ; call interrupt
.IF(AL != 89 && AL != 121) ; if 'Y' of 'y' not entered skip display
jmp skipper ;
.ENDIF ;
msg CRLF ;
;........................................................................
msg msgLine ; display line of stars
disloop: ; beginning of loop
mov BX, counter ; counter
mov AL, buffer[BX] ; buffer array
int 29h ; display character in AL
inc counter ; increment counter
.IF(counter jmp disloop ; end of loop
.ENDIF ; end of counter test
msg CRLF ; new line
msg msgLine ; display line of stars
skipper:
;........................................................................
msg CW ; display copyright
;........................................................................
; ; end
;........................................................................
mov AX,4C00h ; termination function
int 21h ; termination interupt
;........................................................................
; PROCEDURES*************************************************************
;........................................................................
; PROCEDURE TO INPUT NUMBER**********************************************
;........................................................................
InputInt proc ;
push CX ;
push BX ;
mov BX, 0 ;
mov CX, 0 ;
mov NUM, 0 ;
READ: ;
mov AH, 1 ;
int 21h ;
mov DL, AL ;
cmp AL, '0' ;
jl ExitProc ;
cmp AL, '9' ;
jg ExitProc ;
Number: ;
mov AH, 0 ;
sub AL, '0' ;
mov CX, AX ;
mov AX, 10 ;
mul BX ;
add AX, CX ;
mov BX, AX ;
jmp Read ;
ExitProc: ;
mov AX, BX ;
pop BX ;
pop CX ;
mov NUM, AX ;
ret ;
InputInt endp ;
;........................................................................
; PROCEDURE TO DELAY*****************************************************
;........................................................................
delay_1 proc ;
mov AH, 86h ; system wait function
mov CX, 00h ; CX = 1E DX = 8480h for 2 seconds
mov DX, 5000h ; 5000h = 20480d =
int 15h ; 20.480 milliseconds
ret ;
delay_1 endp ;
;........................................................................
; PROCEDURE TO TURN ON FLOPPY DIRVE MOTOR********************************
;........................................................................
motor_on proc ;
mov DX, 3F2h ;
mov AL, on_off_switch ;
OUT DX, AL ;
ret ;
motor_on endp ;
;........................................................................
; PROCEDURE TO TURN OFF FLOPPY DIRVE MOTOR*******************************
;........................................................................
motor_off proc ;
mov DX, 3F2h ;
mov AL, 0h ;
OUT DX, AL ;
ret ;
motor_off endp ;
;........................................................................
; PROCEDURE TO SEND CONTROLLER COMMAND BYTE******************************
;........................................................................
send_controller proc ;
send_check_again: ;
CALL delay_1 ;
mov DX, 3F4h ;
IN AL, DX ;
mov compare_s, AL ;
AND compare_s, 80h ;
.IF (compare_s != 80h) ; 128d = 80h = 1000 0000b
jmp send_check_again ; *****
.ENDIF ;
CALL delay_1 ;
mov DX, 3F5h ;
mov AL, command_byte ;
OUT DX, AL ;
ret ;
send_controller endp ;
;........................................................................
; PROCEDURE TO RECEIVE BYTES FROM CONTROLLER*****************************
;........................................................................
receive_controller proc ;
receive_check_again: ;
CALL delay_1 ;
mov DX, 3F4h ;
IN AL, DX ;
mov compare_r, AL ;
AND compare_r, 80h ;
.IF (compare_r != 80h) ; 128d = 80h = 1000 0000b
jmp receive_check_again ; *****
.ENDIF ;
CALL delay_1 ;
mov DX, 3F5h ;
IN AL, DX ;
mov result_byte, AL ;
ret ;
receive_controller endp ;
;........................................................................
; PROCEDURE TO RECALIBRATE OR RETRACT TRACK TO 0*************************
;........................................................................
recalibrate_a proc ;
recalibrate_it_again: ;
mov AL, 7 ; recalibrate command byte
mov command_byte, AL ;
CALL send_controller ;
mov AL, 0h ; DRIVE A:
mov command_byte, AL ;
CALL send_controller ;
; ; sense interrupt
mov AL, 08h ; sense command byte = 08h
mov command_byte, AL ;
CALL send_controller ;
CALL receive_controller ; result_byte 1 = status
mov AL, result_byte ;
mov compare_x, AL ;
AND compare_x, 80h ;
.IF (compare_x == 80h) ; 128d = 80h = 1000 0000b
jmp recalibrate_it_again ; *****
.ENDIF ;
CALL receive_controller ; result_byte 2 = track
.IF(result_byte != 0) ;
jmp recalibrate_it_again ; *****
.ENDIF ;
ret ;
recalibrate_a endp ;
;........................................................................
; PROCEDURE TO SEEK TRACK AND SIDE***************************************
;........................................................................
seek_track_side proc ;
go_and_seek_it_again: ;
mov AL, 0Fh ; seek command byte = 0Fh
mov command_byte, AL ;
CALL send_controller ;
mov CL, 4 ;
mov AL, side ; INPUT = alternate between 0x00 and 0x04
mul CL ; 0000 0(head = 0 or 1)(drive a: = 0 0)
mov command_byte, AL ;
CALL send_controller ; send command to port
mov AL, track ; INPUT = track
mov command_byte, AL ;
CALL send_controller ;
;...................................; sense interrupt
mov AL, 08h ; sense command byte = 08h
mov command_byte, AL ;
CALL send_controller ;
CALL receive_controller ;
mov AL, result_byte ; result_byte 1 = status
mov compare_t, AL ;
AND compare_t, 80h ;
.IF (compare_t == 80h) ; 128d = 80h = 1000 0000b
jmp go_and_seek_it_again ; *****
.ENDIF ;
CALL receive_controller ; result_byte 2 = track
mov AL, track ;
.IF (result_byte != AL) ;
jmp go_and_seek_it_again ; *****
.ENDIF ;....
ret ;
seek_track_side endp ;
;.......................................................................
; PROCEDURE TO READ SECTOR ID*******************************************
;.......................................................................
read_sector_id proc ;
mov AL, 4Ah ; command byte
mov command_byte, AL ;
CALL send_controller ;
mov CL, 4 ;
mov AL, side ; INPUT = alternate between 0x00 and 0x04
mul CL ; 0000 0(head = 0 or 1)(drive a: = 0 0)
mov command_byte, AL ;
CALL send_controller ; send command to port
CALL receive_controller ;
CALL receive_controller ;
CALL receive_controller ;
CALL receive_controller ;
CALL receive_controller ; result_byte = side
mov AL, side ;
.IF (result_byte != AL) ;
CALL receive_controller ;
CALL receive_controller ;
jmp go_and_seek_it_again ; *****
.ENDIF ;....
CALL receive_controller ;
CALL receive_controller ;
ret ;
read_sector_id endp ;
;........................................................................
; DIRECT MEMORY ACCESS PROCEDURE*****************************************
;........................................................................
dma_access proc ;
;........................................................................
cli ; disable interrupts
;........................................................................
; ; disable dma1
;........................................................................
MOV AL, 14h ;
OUT 08h, AL ; DMA-1 Command Register port 8h
; command 20d = 14h = 0001 0100b
; rotating priority
; disable disabled
; memory to memory transfer
;........................................................................
; ; mode
;........................................................................
MOV AL, dma_access_opperation_code
OUT 0Bh, AL ; DMA-1 Mode Register port 0Bh
; single mode; auto; write; channel 2
;.....................................................................
; ; split address
;.....................................................................
MOV AX, ES ;
MOV CL, 04h ;
SHL AX, CL ;
ADD AX, BX ;
JC carry ;
;.....................................................................
; ; no carry
;.....................................................................
MOV BX, ES ;
MOV CL, 04h ;
SHR BH, CL ;
JMP buffer_address ;
carry: ;
MOV BX, ES ;
MOV CL, 04h ;
SHR BH, CL ;
ADC BH, 0h ;
buffer_address: ;
OUT 0Ch, AL ; DMA-1 Clear Byte Flip-Flop
; reset flip-flop
OUT 04h, AL ; DMA-1 Channel 2 Output
; Low Order Address Byte
MOV AL, AH ;
OUT 04h, AL ; DMA-1 Channel 2 Output
; High Order Address Byte
MOV AL, BH ; page address
OUT 81h, AL ; page value = 11d = 0Bh = 0000 1011
; address bits A16 to A19
; for DMA transfers
;........................................................................
; ; count value
;........................................................................
OUT 0Ch, AL ; DMA-1 Clear Byte Flip-Flop
; reset flip-flop
;........................................................................
; ; BUFFER SIZE = 84 BYTES
;........................................................................
MOV AL, dma_low_order_count_byte
OUT 05h, AL ; DMA-1 Count Port
; load low order count byte
MOV AL, dma_high_order_count_byte
OUT 05h, AL ; load high order count byte
;.......................................................................
; ; unmask channel
;.......................................................................
MOV AL, 02h ; release channel 2
OUT 0Ah, AL ; DMA-1 Mask Register Bit
; command 2d = 2h = 0000 0010b
; clear mask channel 2
;.......................................................................
; ; enable dma1
;.......................................................................
MOV AL, 10h ;
OUT 08h, AL ; DMA-1 Command Register Port
; 10d = 0Ah = 0001 0000b
; enable DMA
sti ; enable interrupts
ret ;
dma_access endp ;
;........................................................................
end start ; end program
------------------------------------------------------------------------
Follow Ups:
<EFBFBD>Disk access... - Jeffrey 2000-02-16 (0)
<EFBFBD>Re: Disk access... - ports 2000-02-22 (0)
<EFBFBD>Re: Disk access... - ////// 2000-02-17 (0)
<EFBFBD>You could try... - Bikram 2000-02-17 (0)
<EFBFBD><EFBFBD>Hard Drive I/O isn't hard at all - Untitled 2000-02-17 (0)
<EFBFBD><EFBFBD><EFBFBD>Wha ?? Read... - Bikram 2000-02-17 (0)
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ports Info - Darius 2000-02-19 (0)
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Re: Ports Info - Bikram 2000-02-20 (0)
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Just rambling mostly - Darius 2000-02-20 (0)
------------------------------------------------------------------------
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