VT82C686B

Manufacturer Part NumberVT82C686B
ManufacturerETC-unknow
VT82C686B datasheet
 
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PCI Function 5 & 6 Registers – AC97 / MC97 Codecs
Function 5 Configuration Space AC97 Header Registers
Offset PCI Configuration Space Header
1-0 Vendor ID
3-2 Device ID
5-4 Command
7-6 Status
8
Revision ID
9
Programming Interface
A
Sub Class Code
B
Base Class Code
C
Cache Line Size
D
Latency Timer
E
Header Type
F
BIST
13-10 Base Address 0 - SGD Control/Status 0000 0001 RW
17-14 Base Address 1 - FM NMI Status
1B-18 Base Address 2 - MIDI Port
1F-1C Base Address 3 (reserved)
23-20 Base Address 4 (reserved)
27-24 Base Address 5 (reserved)
28-29 -reserved-
2F-2C Subsys ID / SubVendor ID
33-30 Expansion ROM (reserved)
34
Capture Pointer
35-3B -reserved-
3C
Interrupt Line
3D
Interrupt Pin
3E-3F -reserved-
Configuration Space Audio Codec-Specific Registers
Offset Audio Codec Link Control
40
AC-Link Interface Status
41
AC-Link Interface Control
42
Function Enable
43
Plug and Play Control
44
MC97 Interface Control
45-47 -reserved-
48
FM NMI Control
49
-reserved-
4B-4A Game Port Base Address
4C-FF -reserved-
Note that these registers are the same as function 6 except for
offset 44 (Read / Write in function 6)
Revision 1.71 June 9, 2000
Function 6 Configuration Space MC97 Header Registers
Default
Acc
Offset PCI Configuration Space Header
RO
1-0 Vendor ID
1106
3058
RO
3-2 Device ID
0000
5-4 Command
RW
0210
WC
7-6 Status
RO
8
Revision ID
nn
00
RO
9
Programming Interface
RO
A
Sub Class Code
01
04
RO
B
Base Class Code
00
RO
C
Cache Line Size
00
RW
D
Latency Timer
00
RO
E
Header Type
00
RO
F
BIST
13-10 Base Address 0 - SGD Control/Status 0000 0001 RW
17-14 Base Address 1 - FM NMI Status
0000 0001 RW
0000 0000 RW
1B-18 Base Address 2 - MIDI Port
0000 0000 —
1F-1C Base Address 3 (reserved)
0000 0000 —
23-20 Base Address 4 (reserved)
0000 0000 —
27-24 Base Address 5 (reserved)
00
28-29 -reserved-
0000 0000 RW
2F-2C Subsys ID / SubVendor ID
0000 0000 —
33-30 Expansion ROM (reserved)
00
34
Capture Pointer
RW
00
35-3B -reserved-
00
3C
Interrupt Line
RW
03
RO
3D
Interrupt Pin
00
3E-3F -reserved-
Configuration Space Modem Codec-Specific Registers
Default
Acc
Offset Modem Codec Link Control
00
40
AC-Link Interface Status
RO
00
RW
41
AC-Link Interface Control
00
RW
42
Function Enable
RW
43
Plug and Play Control
1C
00
RO
44
MC97 Interface Control
00
45-47 -reserved-
00
RO
48
FM NMI Control
00
49
-reserved-
0000
RW
4B-4A Game Port Base Address
00
4C-FF -reserved-
Note that these registers are the same as function 5 except for
offset 44 (Read Only in function 5)
-36-
VT82C686B
Default
Acc
RO
1106
3068
RO
0000
RW
0200
WC
RO
nn
00
RO
RO
80
07
RO
00
RO
00
RW
00
RO
00
RO
0000 0001 RW
0000 0000 RW
0000 0000 —
0000 0000 —
0000 0000 —
00
0000 0000 RW
0000 0000 —
00
RW
00
00
RW
03
RO
00
Default
Acc
00
RO
00
RW
00
RW
RW
1C
00
RW
00
00
RO
00
0000
RO
00
Register Overview