82801CA Datasheet, PDF (399/521 Pages) Intel Corporation – I/O Controller Hub 3-S (ICH3-S)

SMBus Controller Registers (D31:F3)
SMBus Controller Registers (D31:F3) 12
12.1 PCI Configuration Registers (SMBus—D31:F3)
Table 12-1. PCI Configuration Registers (SMBUS—D31:F3)
Offset
00–01h
02–03h
04–05h
06–07h
08h
09h
0Ah
0Bh
20–23h
2C–2Dh
2E–2Fh
3Ch
3Dh
40h
Mnemonic
Register Name/Function
VID
Vendor ID
DID
Device ID
CMD
Command Register
STA
Device Status
RID
Revision ID
PI
Programming Interface
SCC
Sub Class Code
BCC
Base Class Code
SMB_BASE SMBus Base Address Register
SVID
Subsystem Vendor ID
SID
Subsystem ID
INTR_LN Interrupt Line
INTR_PN Interrupt Pin
HOSTC Host Configuration
Default
8086
2483h
0000h
0280h
See Note 2
00h
05h
0Ch
00000001h
00h
00h
00h
02h
00h
NOTES:
1. Registers that are not shown should be treated as Reserved (See Section 6.2 for details).
2. Refer to the Specification Update for the Revision ID.
Type
RO
RO
R/W
R/W
RO
RO
RO
RO
R/W
RO
RO
R/W
RO
R/W
12.1.1
VID—Vendor Identification Register (SMBUS—D31:F3)
Address:
Default Value:
00–01h
8086h
Attributes:
Size:
RO
16 bits
Bit
Description
15:0 Vendor Identification Value—RO. This is a 16-bit value assigned to Intel.
12.1.2
DID—Device Identification Register (SMBUS—D31:F3)
Address:
Default Value:
02–03h
2483h
Attributes:
Size:
RO
16 bits
Bit
15:0 Device Identification Value—RO.
Description
Intel^® 82801CA ICH3-S Datasheet
399