205 lines
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205 lines
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<TITLE>Int 1A/AX=B10Ah/SF=9004h
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Int 1A/AX=B10Ah/SF=9004h - PCI BIOS v2.0c+ - READ CONFIGURATION DWORD (Adaptec devices) -
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AX = B10Ah subfn 9004h
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BH = bus number
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BL = device/function number (bits 7-3 device, bits 2-0 function)
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DI = register number (0000h-00FFh) (see #01241)
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Return: CF clear if successful
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ECX = dword read
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CF set on error
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AH = status (00h,87h) (see #00729)
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EAX, EBX, ECX, and EDX may be modified
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all other flags (except IF) may be modified
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<h2>Int 1A/AX=B10Ah/SF=9004h
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<h3><font color=#C00040>PCI BIOS v2.0c+ - READ CONFIGURATION DWORD (Adaptec devices)</font></h3>
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<PRE>
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AX = B10Ah subfn 9004h
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BH = bus number
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BL = device/function number (bits 7-3 device, bits 2-0 function)
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DI = register number (0000h-00FFh) <a href="rb-2388.htm#Table1241" tppabs="http://www.ctyme.com/intr/rb-2388.htm#Table1241">(see #01241)</a><br>
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<p><b>Return:</b><br>CF clear if successful
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ECX = dword read
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CF set on error
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AH = status (00h,87h) <a href="rb-2371.htm#Table729" tppabs="http://www.ctyme.com/intr/rb-2371.htm#Table729">(see #00729)</a>
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EAX, EBX, ECX, and EDX may be modified
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all other flags (except IF) may be modified
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</PRE>
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<p><b>Notes:</b>
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This function may require up to 1024 byte of stack; it will not enable
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interrupts if they were disabled before making the call.
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The meanings of BL and BH on entry were exchanged between the initial
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drafts of the specification and final implementation
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<p><b>See Also:</b>
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<a href="rb-2377.htm" tppabs="http://www.ctyme.com/intr/rb-2377.htm">AX=B10Ah</a> - <a href="rb-2387.htm" tppabs="http://www.ctyme.com/intr/rb-2387.htm">AX=B10Ah/SF=8086h</a>
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<PRE>
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<p>
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Format of PCI Configuration Data for AIC-78xx PCI SCSI controllers:
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<a name=table1241></a>
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Offset Size Description (Table 01241)
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00h 64 BYTEs header <a href="rb-2377.htm#Table878" tppabs="http://www.ctyme.com/intr/rb-2377.htm#Table878">(see #00878)</a>
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(vendor ID 9004h) <a href="javascript:if(confirm('http://www.ctyme.com/intr/rb-0000.htm \n\nThis file was not retrieved by Teleport Pro, because it was unavailable, or its retrieval was aborted, or the project was stopped too soon. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/intr/rb-0000.htm#Table0'" tppabs="http://www.ctyme.com/intr/rb-0000.htm#Table0"></a>(see #00875 for device ID)
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40h WORD device configuration register (DEVCONFIG) <a href="rb-2388.htm#Table1242" tppabs="http://www.ctyme.com/intr/rb-2388.htm#Table1242">(see #01242)</a>
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</PRE>
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<p><b>See Also:</b>
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#00734 - <a href="int-1a-1.htm" tppabs="http://www.ctyme.com/intr/int-1A.htm">PORT xxxxh</a>"Adaptec AIC-78xx"
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<PRE>
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<p>
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Bitfields for AIC-78xx device configuration register (DEVCONFIG):
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<a name=table1242></a>
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Bit(s) Description (Table 01242)
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15-11 reserved
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10 (AIC-787x+) multi-port mode (MPORTMODE)
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9 (AIC-787x+) external SRAM present? (RAMPSM)
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8 "VOLSENSE"
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7 SCB RAM select (SCBRAMSEL)
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6 "MRDCEN"
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5 (AIC-787x+) external SCB SRAM access time (EXTSCBTIME)
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4 (AIC-787x+) external SCB SRAM parity enable (EXTSCBPEN)
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3 "BERREN"
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2 "DACEN"
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1 SCSI terminator power level (STPWLEVEL)
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0 (AIC-787x+) differential active negation enable (DIFACTNEGEN)
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</PRE>
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<p><b>Note:</b>
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Clearing bit 7 allows access to the external SCB SRAM
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<p><b>See Also:</b>
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#01241
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<p>
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<b>Category: <a href="cat-014.htm" tppabs="http://www.ctyme.com/intr/cat-014.htm">
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Expansion Bus Bios</a>
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- <a href="int-1a-1.htm" tppabs="http://www.ctyme.com/intr/int-1A.htm">
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Int 1Ah</a>
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P</a>
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