82801FB Datasheet, PDF (595/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

AC ’97 Audio Controller Registers (D30:F2)
Table 16-3. Native Audio Bus Master Control Registers (Sheet 2 of 2)
Offset
14h
15h
16h
18h
1Ah
1Bh
20h
24h
25h
26h
28h
2Ah
2Bh
2Ch
30h
34h
40h
44h
45h
46h
48h
4Ah
4Bh
50h
54h
55h
56h
58h
5Ah
5Bh
60h
64h
65h
66h
68h
6Ah
6Bh
80h
Mnemonic
PO_CIV
PO_LVI
PO_SR
PO_PICB
PO_PIV
PO_CR
MC_BDBAR
MC_CIV
MC_LVI
MC_SR
MC_PICB
MC_PIV
MC_CR
GLOB_CNT
Name
PCM Out Current Index Value
PCM Out Last Valid Index
PCM Out Status
PCM In Position In Current Buffer
PCM Out Prefetched Index Value
PCM Out Control
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
Mic. In Control
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
PI2_CIV PCM In 2 Current Index Value
PI2_LVI PCM In 2 Last Valid Index
PI2_SR PCM In 2 Status
PI2_PICB PCM In 2 Position in Current Buffer
PI2_PIV PCM In 2 Prefetched Index Value
PI2_CR PCM In 2 Control
SPBAR S/PDIF Buffer Descriptor List Base Address
SPCIV
S/PDIF Current Index Value
SPLVI
S/PDIF Last Valid Index
SPSR
S/PDIF Status
SPPICB S/PDIF Position In Current Buffer
SPPIV
S/PDIF Prefetched Index Value
SPCR
S/PDIF Control
SDM
SData_IN Map
Default
00h
00h
0001h
0000h
00h
00h
00000000h
00h
00h
0001h
0000h
00h
00h
00000000h
See register
description
00h
00000000h
00h
00h
0001h
0000h
00h
00h
00000000h
00h
00h
0001h
0000h
00h
00h
00000000h
00h
00h
0001h
0000h
00h
00h
00h
Access
RO
R/W
R/WC, RO
RO
RO
R/W, R/W (special)
R/W
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)
R/W
RO
R/W
RO, R/WC
RO
RO
R/W, R/W (special)
R/W
RO
R/W
R/WC, RO
RO
RO
R/W, R/W (special)
R/W
RO
R/W
R/WC, RO
RO
RO
R/W, R/W (special)
R/W, RO
Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet
595