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Intel® 460GX Chipset Software Developer’s Manual 9-5
IFB Register Mapping
9.4 SMBus Controller Configuration
The IFB PCI function 3 contains the SMBus Controller configuration space.
9.4.1 SMBus Configuration Registers (Function 3)
Table 9-4. PCI Configuration Registers–Function 3 (SMBus Controller Interface)
Configuration Offset Mnemonic Register Register Access
00–01h VID Vendor Identification RO
02–03h DID Device Identification RO
04–05h PCICMD PCI Command R/W
06–07h PCISTS PCI Device Status R/WC
08h RID Revision Identification RO
09-0Bh CLASSC Class Code RO
0C-1Fh – Reserved –
20-23h BAR Base Address Register R/W
24-3Bh – Reserved –
3Ch IL Interrupt Line RW
3Dh IP Interrupt Pin RO
3E-3Fh – Reserved –
40h HC Host Configuration RW
41h SCOM Slave Command Port RW
42h SS1 Slave Shadow Address 1 RW
43h SS2 Slave Shadow Address 2 RW
41-F3h – Reserved –
F4-F7h – Reserved –
F8-FBh – Manufacturer’s ID Register –
FC-FFh – Reserved –