I/O Mapped Registers; Pci Device 0 Function 0 Configuration Space; Pci Device 0, Function 0 Register Address Map - Intel 2ND GENERATION CORE PROCESSOR FAMILY DESKTOP - DATASHEET VOLUME 2 01-2011 Datasheet

2.4.1

I/O Mapped Registers

The processor contains two registers that reside in the processor I/O address space—
the Configuration Address (CONFIG_ADDRESS) Register and the Configuration Data
(CONFIG_DATA) Register. The Configuration Address Register enables/disables the
configuration space and determines what portion of configuration space is visible
through the Configuration Data window.
2.5

PCI Device 0 Function 0 Configuration Space

Table 2-7
the sections following the table.
Table 2-7. PCI Device 0, Function 0 Register Address Map (Sheet 1 of 2)
Address
Offset
0–1h
2–3h
4–5h
6–7h
8h
9–Bh
C–Dh
Eh
F–2Bh
2C–2Dh
2E–2Fh
30–33h
34h
35–3Fh
40–47h
48–4Fh
50–51h
52–53h
54–57h
58–5Bh
5C–5Fh
60–67h
68–6Fh
70–77h
78–7Fh
80h
46
lists the registers arranged by address offset. Register bit descriptions are in
Register
Symbol
VID Vendor Identification
DID Device Identification
PCICMD PCI Command
PCISTS PCI Status
RID Revision Identification
CC Class Code
RSVD Reserved
HDR Header Type
RSVD Reserved
SVID Subsystem Vendor Identification
SID Subsystem Identification
RSVD Reserved
RSVD Reserved
RSVD Reserved
PCI Express Egress Port Base Address
PXPEPBAR
Host Memory Mapped Register Range Base
MCHBAR
GGC GMCH Graphics Control Register
RSVD Reserved
DEVEN Device Enable
PAVPC Protected Audio Video Path Control
DMA Protected Range
DPR
PCI Express Register Range Base Address
PCIEXBAR
Root Complex Register Range Base Address
DMIBAR
Reserved
RSVD
Reserved
RSVD
PAM0 Programmable Attribute Map 0
Processor Configuration Registers
Register Name Reset Value Access
8086h RO
0100h RO-FW, RO-V
0006h RO, RW
0090h RO, RW1C
00h RO-FW
060000h RO
0h RO
00h RO
0h RO
0000h RW-O
0000h RW-O
0h RO
E0h RO
0h RO
00000000000
RW
00000h
00000000000
RW
00000h
0028h RW-KL, RW-L
0h RO
0000209Fh RW-L, RO, RW
00000000h RW-L, RW-KL
RW-L, RO-V,
00000000h
RW-KL
00000000000
RW, RW-V
00000h
00000000000
RW
00000h
0000007FFFF
RW-L
00000h
00000000000
RW-L, RW-KL
00000h
00h RW
Datasheet, Volume 2