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4 smbus controller configuration, 1 smbus configuration registers (function 3), Smbus controller configuration -5 9.4.1 – Intel 460GX User Manual

Page 169: Smbus configuration registers (function 3) -5

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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