Register Description
Address
Offset
Symbol
CAPP
Register Name
Default
Attribute
34h
40–41h
44h
Capabilities Pointer Register
44h
0000h
10h
RWO
RW, RO
RO
ABAR
Alternate Base Address Register
EXP_CAPID
PCI Express* Capability Identifier
Register
45h
EXP_NXTP
EXP_CAP
Next Item Pointer Register
6Ch
0001h
RO
RO
RO
46–47h
48–4Bh
PCI Express* Capability Register
EXP_DEVCAP
PCI Express* Device Capabilities
Register
00000001h
4C–4Dh
EXP_DEVCNTL
PCI Express* Device Control
Register
0020h
RW, RO
4E–4Fh
50–53h
EXP_DEVSTS
EXP_LCAP
PCI Express* Device Status Register
0000h
RWC, RO
RO
PCI Express* Link Capabilities
Register
0003E081h
54–55h
56–57h
6Ch
EXP_LCNTL
EXP_LSTS
PM_CAPID
PCI Express* Link Control Register
PCI Express* Link Status Register
0000h
00x0oh
00x0oh
RW, RO
RO
Power Management Capability
Identifier Register
RO
6Dh
PM_NXTPTR
PM_CAP
Power Management Capability
Identifier Register
00x0oh
01h
RO
RO
6E–6Fh
70–71h
Power Management Next Pointer
Register
PM_CNTLSTS
Power Management Control and
Status Register
00h
RW, RO
80–C0h
Alias of memory space registers at 00h, 10h, 20h, and 40h
3.8.1.2
Offset 00h: VID—Vendor ID Register (D0: F1, F3)
Offset:
Default Value: 8086h
00–01h
Attribute: RO
Size: 16 bits
This register contains the Vendor Identifiers.
Bits
Type
Reset
Description
15:0
RO
8086h
Vendor ID (VID). 16-bit field, which indicates that Intel is the vendor.
VID=8086
138
Intel® 6700PXH 64-bit PCI Hub Datasheet
INTEL [ INTEL ]
