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<TITLE>Int 15/AX=53B0h/BH=10h
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Int 15/AX=53B0h/BH=10h - Intel System Management Bus - REQUEST -
AX = 53B0h
BH = 10h
BL = protocol (see #00487)
CH = device address
CL = device command (see #00488)
DH = MSB Data or block length (for BlockWrite)
DL = LSB Data or first byte of block (for BlockWrite)
Return: CF clear if successful
AH = 00h or 80h (SMBus OK)
(80h indicates a previously unreported SMI took place)
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<h2>Int 15/AX=53B0h/BH=10h
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<h3><font color=#C00040>Intel System Management Bus - REQUEST</font></h3>
<PRE>
AX = 53B0h
BH = 10h
BL = protocol <a href="rb-1445.htm#Table487" tppabs="http://www.ctyme.com/intr/rb-1445.htm#Table487">(see #00487)</a>
CH = device address
CL = device command <a href="rb-1445.htm#Table488" tppabs="http://www.ctyme.com/intr/rb-1445.htm#Table488">(see #00488)</a>
DH = MSB Data or block length (for BlockWrite)
DL = LSB Data or first byte of block (for BlockWrite)<br>
<p><b>Return:</b><br>CF clear if successful
AH = 00h or 80h (SMBus OK)
(80h indicates a previously unreported SMI took place)
CF set if error
AH = error code (05h,10h,11h,12h,13h,14h,17h,19h,1Ah,86h)
<a href="rb-1437.htm#Table484" tppabs="http://www.ctyme.com/intr/rb-1437.htm#Table484">(see #00484)</a>
</PRE>
<p><b>Desc:</b>
Request access to a device on the SMBus
<p><b>See Also:</b>
<a href="rb-1446.htm" tppabs="http://www.ctyme.com/intr/rb-1446.htm">AX=53B0h/BH=11h</a> - AX=53B0h/BH=13h
<PRE>
<p>
<a name=table487></a>
(Table 00487)
Values for Intel System Management Bus protocol codes:
00h Quick Command
01h Send Byte
02h Receive Byte
03h Write Byte
04h Read Byte
05h Write Word
06h Read Word
07h Block Write
08h Block Read
09h Process Call
0Ah-FFh reserved
</PRE>
<p><b>See Also:</b>
#00488
<PRE>
<p>
<a name=table488></a>
(Table 00488)
Values for Intel System Management Bus Smart Battery command codes:
Cmd Protocol(s) Description
00h Rd/Wr Word "ManufacturerAccess" implementation-specific
01h Rd/Wr Word get/set Low Capacity Alarm threshold
02h Rd/Wr Word get/set Remaining Time Alarm value (in minutes)
03h Rd/Wr Word get/set battery characteristics <a href="rb-1445.htm#Table489" tppabs="http://www.ctyme.com/intr/rb-1445.htm#Table489">(see #00489)</a>
04h Rd/Wr Word "AtRate" indicate charge/discharge rate
05h Read Word "AtRateTimeToFull" time to completely charge (in min.)
06h Read Word "AtRateTimeToEmpty" time to entirely discharge (min.)
<p><b>07h Read Word "AtRateOK" boolean:</b><br>Can battery supply another 10sec?
08h Read Word internal battery temperature (in 0.1 Kelvins)
09h Read Word current battery voltage in millivolts
0Ah Read Word current flowing through battery in milliamperes
(positive if charging, negative if discharging)
0Bh Read Word average current over the past minute
0Ch Read Word expected error margin in capacity computations in %
0Dh Read Word predicted remaining charge as % of full charge
0Eh Read Word predicted remaining charge as % of design capacity
0Fh Read Word predicted remaining charge in mAh or 10mWh
10h Read Word predicted full charge capacity in mAh or 10mWh
11h Read Word predicted remaining battery life in minutes
FFFFh = not discharging
12h Read Word rolling average of predicted life over past minute
13h Read Word rolling average of predicted charge time over past min.
FFFFh = not charging
14h Read Word get battery's desired charging current in mA
14h Write Word set charging current in mA
15h Read Word get battery's desired charging current in mV
15h Write Word set desired charging voltage in mV
16h Read Word get current battery status <a href="rb-1445.htm#Table490" tppabs="http://www.ctyme.com/intr/rb-1445.htm#Table490">(see #00490)</a>
17h Read Word get number of charge/discharge cycles for battery
18h Read Word get design capacity in mAh or 10mWh
19h Read Word get design voltage
1Ah Read Word get specification information <a href="rb-1445.htm#Table491" tppabs="http://www.ctyme.com/intr/rb-1445.htm#Table491">(see #00491)</a>
1Bh Read Word get manufacture date <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 #01665 at INT 21/AX=5700h)
1Ch Read Word get serial number
1Dh-1Fh reserved
20h Read Block get manufacturer's name
21h Read Block get device name
22h Read Block get device chemistry <a href="rb-1445.htm#Table492" tppabs="http://www.ctyme.com/intr/rb-1445.htm#Table492">(see #00492)</a>
23h Read Block get manufacturer data
24h-2Eh reserved
2Fh manufacturer-specific
30h-3Bh reserved
3Ch-3Fh manufacturer-specific
</PRE>
<p><b>Note:</b>
Bits 7-6 are reserved for addressing multiple batteries in a future
version of the specification
<p><b>See Also:</b>
#00487
<PRE>
<p>
Bitfields for Smart Battery battery characteristics:
<a name=table489></a>
Bit(s) Description (Table 00489)
0 battery has internal charge controller (read-only)
1 primary/secondary battery support (read-only)
6-2 reserved
7 conditioning cycle requested
8 internal charge controller enabled
9 battery operating in primary mode
13-10 reserved
14 disable broadcast to charger
15 report capacity in units of 10mW / 10mWh instead of mA / mAh
</PRE>
<p><b>See Also:</b>
#00488 - #00490
<PRE>
<p>
Bitfields for Smart Battery battery status:
<a name=table490></a>
Bit(s) Description (Table 00490)
15 overcharged
14 terminate-charge alarm
13 reserved
12 over-temperature alarm
11 terminate-discharge alarm
10 reserved
9 remaining-capacity alarm
8 remaining-time alarm
7 initialized
6 charging
5 fully charged
4 fully discharged
3-0 error codes.
0000 OK.
0001 busy.
0010 reserved command.
0011 unsupported command.
0100 access denied (tried to write to read-only value).
0101 overflow/underflow.
0110 bad size.
0111 unknown error
</PRE>
<p><b>See Also:</b>
#00488 - #00489 - #00491
<PRE>
<p>
Bitfields for Smart Battery specification information:
<a name=table491></a>
Bit(s) Description (Table 00491)
3-0 SmartBattery specification minor revision number
7-4 SmartBattery specification version number
11-8 voltage scaling (0-3, multiply voltages by 10^scale)
15-12 current scaling (0-3, multiply currents by 10^scale)
</PRE>
<p><b>See Also:</b>
#00488 - #00490
<PRE>
<p>
<a name=table492></a>
(Table 00492)
Values for Smart Battery device chemistry (not case-sensitive):
"LION" Lithium ion
"NiMH" Nickel metal hydride
"PbAc" lead-acid
"NiCd" Nickel Cadmium
"NiZn" Nickel Zinc
"RAM" rechargeable Alkaline Manganese
"ZnAr" Zinc-Air
</PRE>
<p><b>See Also:</b>
#00488
<p>
<b>Category: <a href="cat-014.htm" tppabs="http://www.ctyme.com/intr/cat-014.htm">
Expansion Bus Bios</a>
- <a href="int-15.htm" tppabs="http://www.ctyme.com/intr/int-15.htm">
Int 15h</a>
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