301467-005 Datasheet, PDF (203/426 Pages) Intel Corporation – Express Chipset

Device 2 Function 1 (D2:F1) Configuration Registers
(Intel® 82915G/82915GV/82915GL/ 82910GL Only)
R
10.1.26
ASLS—ASL Storage (D2:F1)
PCI Device:
Address Offset:
Default Value:
Access:
Size:
2
FCh
00000000h
R/W
32 bits
This software scratch register only needs to be read/write accessible. The exact bit register usage
must be worked out in common between System BIOS and driver software, but storage for
switching/indicating up to 6 devices is possible with this amount. For each device, the ASL
control method with require two bits for _DOD (BIOS detectable yes or no, VGA/NonVGA), one
bit for _DGS (enable/disable requested), and two bits for _DCS (enabled now/disabled now,
connected or not).
Bit
Access &
Default
Description
31:0
R/W
R/W according to a software controlled usage to support device switching
00000000 h
Datasheet
203