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<TITLE>Int 1A/AX=B10Ah/SF=1011h
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Int 1A/AX=B10Ah/SF=1011h - PCI BIOS v2.0c+ - READ CONFIGURATION DWORD (DEC device) -
AX = B10Ah subfn 1011h
BH = bus number
BL = device/function number (bits 7-3 device, bits 2-0 function)
DI = register number (0000h-00FFh) (see #00878)
Return: CF clear if successful
ECX = dword read
CF set on error
AH = status (00h,87h) (see #00729)
EAX, EBX, ECX, and EDX may be modified
all other flags (except IF) may be modified
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<h2>Int 1A/AX=B10Ah/SF=1011h
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<h3><font color=#C00040>PCI BIOS v2.0c+ - READ CONFIGURATION DWORD (DEC device)</font></h3>
<PRE>
AX = B10Ah subfn 1011h
BH = bus number
BL = device/function number (bits 7-3 device, bits 2-0 function)
DI = register number (0000h-00FFh) <a href="rb-2377.htm#Table878" tppabs="http://www.ctyme.com/intr/rb-2377.htm#Table878">(see #00878)</a><br>
<p><b>Return:</b><br>CF clear if successful
ECX = dword read
CF set on error
AH = status (00h,87h) <a href="rb-2371.htm#Table729" tppabs="http://www.ctyme.com/intr/rb-2371.htm#Table729">(see #00729)</a>
EAX, EBX, ECX, and EDX may be modified
all other flags (except IF) may be modified
</PRE>
<p><b>Notes:</b>
This function may require up to 1024 byte of stack; it will not enable
interrupts if they were disabled before making the call.
The meanings of BL and BH on entry were exchanged between the initial
drafts of the specification and final implementation
<p><b>See Also:</b>
<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>
<PRE>
<p>
Format of DEC DC21140/DC21040/DC21041 Tulip {Fast/Plus} Ethernet:
<a name=table923></a>
Offset Size Description (Table 00923)
00h 64 BYTEs header <a href="rb-2377.htm#Table878" tppabs="http://www.ctyme.com/intr/rb-2377.htm#Table878">(see #00878)</a>
(vendor ID 1011h, device ID 0014h)
10h DWORD base I/O port for access to control/status registers
14h DWORD base memory address for access to control/status registers
40h DWORD configuration driver area
<p><b>bit 31:</b><br>Sleep mode \ only one of bits 31,30 may be set
<p><b>bit 30:</b><br>Snooze mode /
<p><b>bits 15-8:</b><br>Device driver's use
!!!digital\21041hm.pdf p.34 digital\21140ahm.pdf p.35
</PRE>
<p><b>See Also:</b>
#00742
<PRE>
<p>
Format of DEC 21052 PCI-PCI bridge PCI configuration data:
<a name=table924></a>
Offset Size Description (Table 00924)
00h 64 BYTEs header, type 1 <a href="rb-2377.htm#Table878" tppabs="http://www.ctyme.com/intr/rb-2377.htm#Table878">(see #00878)</a>
(vendor ID 1011h, device ID 0021h)
40h BYTE chip control
41h BYTE diagnostic control
42h BYTE burst counter
43h BYTE SErr disable
44h BYTE primary target wait timer
45h BYTE secondary target wait timer
46h 2 BYTEs reserved
48h DWORD count of secondary write attempts
4Ch DWORD count of primary write attempts
50h 44 DWORDs reserved
!!!digital\21052ds.pdf p.117
</PRE>
<p><b>See Also:</b>
#00742
<p>
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Expansion Bus Bios</a>
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