Product specifications

VT8235 V-Link South Bridge
Revision 1.22 October 24, 2002 -32- Register Overview
Device 17 Function 5 & 6 Registers – AC/MC97 Codecs
Function 5 Configuration Space AC97 Header Registers
Offset
Confi
g
uration S
p
ace Header Default Acc
1-0 Vendor ID
1106
RO
3-2 Device ID
3059
RO
5-4 Command 0000
RW
7-6 Status
0210
RO
8 Revision ID
50
RO
9 Programming Interface 00 RO
A Sub Class Code
01
RO
B Base Class Code
04
RO
C-F -reserved- 00 —
13-10 Base Address 0 - SGD Control/Status
0000 0001 RW
17-14 Base Address 1 (reserved) 0000 0000 —
1B-18 Base Address 2 (reserved) 0000 0000 —
1F-1C Base Address 3 (reserved) 0000 0000 —
23-20 Base Address 4 (reserved) 0000 0000 —
27-24 Base Address 5 (reserved) 0000 0000 —
28-29 -reserved- 00 —
2F-2C Subsystem ID / SubVendor ID 0000 0000
RW
33-30 Expansion ROM (reserved) 0000 0000 —
34 Capture Pointer
C0 RW
35-3B -reserved- 00 —
3C Interrupt Line 00
RW
3D Interrupt Pin
03
RO
3E Minimum Grant 00 RO
3F Maximum Latency 00 RO
Configuration Space Audio Codec-Specific Registers
Offset
Audio Codec Link Control Default Acc
40 AC-Link Interface Status 00
RO
41 AC-Link Interface Control 00 RW
42 Function Enable 00 RW
43 -reserved- 00 —
44 MC97 Interface Control 00
RO
45-47 -reserved- 00 —
48 Value Change Rate Control 00 RW
49 S/PDIF Control 00 RW
4A-BF -reserved- 00 —
C3-C0 Power Management Capability
0002 0001 RO
C7-C4 Power State 0000 0000 RW
C8-FF -reserved- 00 —
Function 6 Configuration Space MC97 Header Registers
Offset
Configuration Space Header
Default Acc
1-0 Vendor ID
1106
RO
3-2 Device ID
3068
RO
5-4 Command 0000
RW
7-6 Status
0200
RO
8 Revision ID
70
RO
9 Programming Interface 00 RO
A Sub Class Code
80
RO
B Base Class Code
07
RO
C-F -reserved- 00 —
13-10 Base Address 0 - SGD Control/Status
0000 0001 RW
17-14 Base Address 1 (reserved) 0000 0000 —
1B-18 Base Address 2 (reserved) 0000 0000 —
1F-1C Base Address 3 (reserved) 0000 0000 —
23-20 Base Address 4 (reserved) 0000 0000 —
27-24 Base Address 5 (reserved) 0000 0000 —
28-29 -reserved- 00 —
2F-2C Subsystem ID / SubVendor ID 0000 0000
RW
33-30 Expansion ROM (reserved) 0000 0000 —
34 Capture Pointer
D0 RW
35-3B -reserved- 00 —
3C Interrupt Line 00
RW
3D Interrupt Pin
03
RO
3E Minimum Grant 00 RO
3F Maximum Latency 00 RO
Configuration Space Modem Codec-Specific Registers
Offset
Mode
m Codec Link Control
Default Acc
40 AC-Link Interface Status 00
RO
41 AC-Link Interface Control 00 RW
42 Function Enable 00
RO
43 -reserved- 00 —
44 MC97 Interface Control 00 RW
45-47 -reserved- 00 —
48 Value Change Rate Control 00
RO
49 S/PDIF Control 00
RO
4A-CF -reserved- 00 —
D3-D0 Power Management Capability
0002 0001 RO
D7-D4 Power State 0000 0000 RW
D8-FF -reserved- 00 —