82801FB Datasheet, PDF (675/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

PCI Express* Configuration Registers
19 PCI Express* Configuration
Registers
19.1 PCI Express* Configuration Registers
(PCI Express—D28:F0/F1/F2/F3)
Note: Register address locations that are not shown in Table 19-1 and should be treated as Reserved.
Table 19-1. PCI Express* Configuration Registers Address Map
(PCI Express—D28:F0/F1/F2/F3) (Sheet 1 of 3)
Offset Mnemonic
Register Name
00–01h
02–03h
04–05h
06–07h
VID
DID
PCICMD
PCISTS
Vendor Identification
Device Identification
PCI Command
PCI Status
08h
RID
Revision Identification
09h
0Ah
0Bh
0Ch
0Dh
0Eh
18–1Ah
1C–1Dh
1E–1Fh
20–23h
24–27h
28–2Bh
2C–2Fh
34h
PI
Programming Interface
SCC Sub Class Code
BCC Base Class Code
CLS Cache Line Size
PLT
Primary Latency Timer
HEADTYP Header Type
BNUM Bus Number
IOBL I/O Base and Limit
SSTS
Secondary Status
Register
MBL Memory Base and Limit
PMBL
Prefetchable Memory
Base and Limit
PMBU32
Prefetchable Memory
Base Upper 32 Bits
PMLU32
Prefetchable Memory
Limit Upper 32 Bits
CAPP Capabilities List Pointer
3C–3Dh
INTR Interrupt Information
3E–3Fh BCTRL Bridge Control Register
Function 0 Function 1 Function 2 Function 3
Default
Default
Default
Default
Type
8086h
8086h
8086h
8086h
RO
2660h
0000h
0010h
2662h
0000h
0010h
2664h
0000h
0010h
2666h
0000h
0010h
RO
R/W, RO
R/WC, RO
See register
description.
See
register
description.
See register
description.
See register
description.
RO
00h
00h
00h
00h
RO
04h
04h
04h
04h
RO
06h
06h
06h
06h
RO
00h
00h
00h
00h
R/W
00h
00h
00h
00h
RO
81h
81h
81h
81h
RO
000000h
000000h
000000h
000000h
R/W
0000h
0000h
0000h
0000h
R/W, RO
0000h
0000h
0000h
0000h
R/WC
00000000h 00000000h 00000000h 00000000h
R/W
00010001h 00010001h 00010001h 00010001h R/W, RO
00000000h 00000000h 00000000h 00000000h
R/W
00000000h
40h
See bit
description
0000h
00000000h 00000000h 00000000h
40h
See bit
description
0000h
40h
See bit
description
0000h
40h
See bit
description
0000h
R/W
RO
R/W, RO
R/W
Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet
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