Specification Sheet

Datasheet, Volume 2 of 2 243
MCHBAR Registers
7.81 SSKPD—Offset 5D10h
This register holds 64 writable bits with no functionality behind them. It is for the
convenience of BIOS and graphics drivers.
Access Method
Default: 0h
7.82 BIOS—Offset 5DA8h
This register is used as interface between BIOS and hardware. It is written by BIOS and
read by hardware.
Access Method
Default: 0h
Type: MEM
(Size: 64 bits)
Offset: [B:0, D:0, F:0] + 5D10h
6
3
6
0
5
6
5
2
4
8
4
4
4
0
3
6
3
2
2
8
2
4
2
0
1
6
1
2
8
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SKPD
Bit
Range
Default &
Access
Field Name (ID): Description
63:0
0h
RWS
SKPD: 4 WORDs of data storage.
Type: MEM
(Size: 32 bits)
Offset: [B:0, D:0, F:0] + 5DA8h
3
1
2
8
2
4
2
0
1
6
1
2
8
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RSVD
ENABLE_PCIE_NDA_PG
C7_ALLOWED
PCIE_ENUMERATION_DONE
RST_CPL