User Guide

FIC CONFIDENTIAL AND PROPRIETARY
MB02 Functional Specifications Rev. 0.3 Page 49
FIC H/W
FIC CONFIDENTIAL AND PROPRIETARY 11-November-2002_
6.24 ICH4-M SMBus IO Register
SMBusBA
SE+offset
Type Name Default
00h r/wc, RO Host Status 00h
02h r/w, WO Host Control 00h
03h r/w Host Command 00h
04h r/w Transmit Slave Address 00h
05h r/w Host Data 0 00h
06h r/w Host Data 1 00h
07h r/w Host Block Data Byte 00h
08h r/w Packet Error Check 00h
09h r/w Receive Slave Address 44h
0Ah r/w Slave Data 0000h
0Ch r/w Auxiliary Status 00h
0Dh r/w Auxiliary Control 00h
0Eh r/wc SMLink Pin Control 04h
0Fh r/w SMBus Pin Control 04h
10h r/w, RO Slave Status 00h
11h r/w, RO Slave Command 00h
14h RO Notify Device Address 00h
16h RO Notify Data Low Byte 00h
17h RO Notify Data High Byte 00h
6.25 CH4-M AC97 Audio Cotroller Register (Device 31:Function 5)
Address Access Register Name Default Value
00-01h RO Vendor ID 8086h
02-03h RO Device ID 24C5h
04-05h RO, r/w Command Register 0000h
06-07h RO, r/wc Status Register 0280h
08h RO Revision ID
09h RO Programming Interface 00h
0Ah RO Sub Class Code 01h
0Bh RO Base Class Code 04h
0Eh RO Header Type 00h
10-13h RO, r/w Native Audio Mixer Base Address 00000001h
14-17h RO, r/w Native Audio Bus Mastering Base
Address
00000001h
18-1Bh RO, r/w Mixer Base Address(Mem) 00000000h
1C-1Fh RO, r/w Bus Master Base Address (Mem) 00000000h
2C-2Dh r/wo Subsystem Vendor ID 0000h
2E-2Fh r/wo Subsystem ID 0000h
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