307013-003 Datasheet, PDF (633/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

AC ’97 Audio Controller Registers (D30:F2) (Desktop and Mobile Only)
Table 16-3. Native Audio Bus Master Control Registers (Sheet 1 of 2)
Offset Mnemonic
Name
Default
Access
00h
04h
05h
06h
08h
0Ah
0Bh
10h
14h
15h
16h
18h
1Ah
1Bh
20h
24h
25h
26h
28h
2Ah
2Bh
2Ch
30h
34h
40h
44h
45h
46h
48h
4Ah
4Bh
50h
PI_BDBAR
PI_CIV
PI_LVI
PI_SR
PI_PICB
PI_PIV
PCM In Buffer Descriptor list Base
Address
PCM In Current Index Value
PCM In Last Valid Index
PCM In Status
PCM In Position in Current Buffer
PCM In Prefetched Index Value
PI_CR
PCM In Control
PO_BDBAR
PO_CIV
PO_LVI
PO_SR
PO_PICB
PO_PIV
PCM Out Buffer Descriptor list Base
Address
PCM Out Current Index Value
PCM Out Last Valid Index
PCM Out Status
PCM In Position In Current Buffer
PCM Out Prefetched Index Value
PO_CR PCM Out Control
MC_BDBAR
MC_CIV
MC_LVI
MC_SR
MC_PICB
MC_PIV
Mic. In Buffer Descriptor List Base
Address
Mic. In Current Index Value
Mic. In Last Valid Index
Mic. In Status
Mic. In Position In Current Buffer
Mic. In Prefetched Index Value
MC_CR Mic. In Control
GLOB_CNT Global Control
GLOB_STA Global Status
CAS
Codec Access Semaphore
MC2_BDBAR
Mic. 2 Buffer Descriptor List Base
Address
MC2_CIV Mic. 2 Current Index Value
MC2_LVI Mic. 2 Last Valid Index
MC2_SR Mic. 2 Status
MC2_PICB Mic 2 Position In Current Buffer
MC2_PIV Mic. 2 Prefetched Index Value
MC2_CR Mic. 2 Control
PI2_BDBAR
PCM In 2 Buffer Descriptor List Base
Address
00000000h
R/W
00h
00h
0001h
0000h
00h
00h
RO
R/W
R/WC, RO
RO
RO
R/W, R/W
(special)
00000000h
R/W
00h
00h
0001h
0000h
00h
00h
RO
R/W
R/WC, RO
RO
RO
R/W, R/W
(special)
00000000h
R/W
00h
00h
0001h
0000h
00h
00h
00000000h
See register
description
00h
RO
R/W
R/WC, RO
RO
RO
R/W, R/W
(special)
R/W, R/W
(special)
R/W, R/WC, RO
R/W (special)
00000000h
R/W
00h
00h
0001h
0000h
00h
00h
RO
R/W
RO, R/WC
RO
RO
R/W, R/W
(special)
00000000h
R/W
Intel ^® ICH7 Family Datasheet
633