
REV. 0
AD1888
–9–
Indexed Control Registers
Reg Name
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
00h
Reset
X
SE4
SE3
SE2
SE1
SE0
ID9
ID8
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
0090h
02h
Master Volume
MM
X
LMV5
LMV4
LMV3
LMV2
LMV1
LMV0
MMRM
*
X
RMV5 RMV4 RMV3 RMV2 RMV1 RMV0
8000h
04h
Headphone
Volume
HPM
X
LHV5
LHV4
LHV3
LHV2
LHV1
LHV0
HPRM
*
X
RHV5
RHV4
RHV3
RHV2
RHV1
RHV0
8000h
06h
Mono Volume
MVM
X
X
X
X
X
X
X
X
X
MV5
MV4
MV2
MV2
MV1
MV0
8000h
0Ch Phone Volume
PHM
X
X
X
X
X
X
X
X
X
X
PHV4
PHV3
PHV2
PHV1
PHV0
8008h
0Eh MIC Volume
MCM
X
X
X
X
X
X
X
X
M20
X
MCV4 MCV3 MCV2 MCV1 MCV0
8008h
10h
Line-In Volume
LVM
X
X
LLV4
LLV3
LLV2
LLV1
LLV0
LVRM
*
X
X
RLV4
RLV3
RLV2
RLV1
RLV0
8808h
12h
CD Volume
CVM
X
X
LCV4
LCV3
LCV2
LCV1
LCV0
CDRM
*
X
X
RCV4
RCV3
RCV2
RCV1
RCV0
8808h
16h
AUX Volume
AVM
X
X
LAV4
LAV3
LAV2
LAV1
LAV0
AVRM
*
X
X
RAV4
RAV3
RAV2
RAV1
RAV0
8808h
18h
PCM Out Vol
OM
X
X
LOV4
LOV3
LOV2
LOV1
LOV0
OMRM
*
X
X
ROV4
ROV3
ROV2
ROV1
ROV0
8808h
1Ah Record Select
X
X
X
X
X
LS2
LS1
LS0
X
X
X
X
X
RS2
RS1
RS0
0000h
1Ch Record Gain
IM
X
X
X
LIM3
LIM2
LIM1
LIM0
IMRM
*
X
X
X
RIM3
RIM2
RIM1
RIM0
8000h
20h
General-Purpose X
X
X
X
DRSS1
DRSS0
X
MS
LPBK
X
X
X
X
X
X
X
0000h
24h
Audio Int.
and Paging
I4
X
X
X
I0
X
X
X
X
X
X
X
PG3
PG2
PG1
PG0
xxxxh
26h
Power-Down
Ctrl/Stat
EAPD
PR6
PR5
PR4
PR3
PR2
PR1
PR0
X
X
X
X
REF
ANL
DAC
ADC
NA
28h
Ext’d Audio ID
ID1
ID0
X
X
REV1
REV0
AMAP LDAC
SDAC
CDAC
DSA1
DSA0
X
SPDIF DRA
VRA
x3C7h
2Ah Ext’d Audio
Stat/Ctrl
VFORCE X
PRK
PRJ
PRI
SPCV
X
ELDAC
ESDAC
ECDAC
SPSA1 SPSA0 X
ESPDIF EDRA
EVRA
0xx0h
2Ch PCM Front
DAC Rate
SRF15
SRF14
SRF13
SRF12
SRF11
SRF10
SRF9
SRF8
SRF7
SRF6
SRF5
SRF4
SRF3
SRF2
SRF1
SRF0
BB80h
2Eh PCM Surr
DAC Rate
SRS15
SRS14
SRS13
SRS12
SRS11
SRS10
SRS9
SRS8
SRS7
SRS6
SRS5
SRS4
SRS3
SRS2
SRS1
SRS0
BB80h
30h
PCM C/LFE
DAC Rate
SRCL15
SRCL14 SRCL13 SRCL12 SRCL11 SRCL10 SRCL9 SRCL8
SRCL7
SRCL6
SRCL5 SRCL4 SRCL3 SRCL2 SRCL1 SRCL0
BB80h
32h
PCM L/R
ADC Rate
SRA15
SRA14
SRA13
SRA13
SRA11
SRA10
SRA9
SRA8
SRA7
SRA6
SRA5
SRA4
SRA3
SRA2
SRA1
SRA0
BB80h
36h
Center/LFE
Volume
LM
X
LFE5
LFE4
LFE3
LFE2
LFE1
LFE0
CM
X
CNT5
CNT4
CNT3
CNT2
CNT1
CNT0
8080h
38h
Surround Volume MUTE_L X
LSR5
LSR4
LSR3
LSR2
LSR1
LSR0
MUTE_R X
RSR5
RSR4
RSR3
RSR2
RSR1
RSR0
8080h
3Ah SPDIF Control
V
X
SPSR1
SPSR0
L
CC6
CC5
CC4
CC3
CC2
CC1
CC0
PRE
COPY
/AUD
PRO
2000h
72h
JACK SENSE
JS1
SPRD
JS1
DMX
JS0
DMX
JS
MT2
JS
MT1
JS
MT0
X
X
JS1
TMR
JS0
TMR
JS1
MD
JS0
MD
JS1
ST
JS0
ST
JS1
INT
JS0
INT
0000h
74h
Serial
Configuration
SLOT 16 REGM2 REGM1 REGM0 REGM3 DRF
X
CHEN
X
LBKS1
LBKS0 INTS
X
SPAL
SPDZ
SPLNK
1001h
76h
Misc Control
Bits
DACZ
AC97NC
MSPLT LODIS
CLDIS
HPSEL
DMIX1 DMIX0 SPRD
X
LOSEL SRU
VREFH
VREFD
MBG1 MBG0
0000h
7Ch Vendor ID1
F7
F6
F5
F4
F3
F2
F1
F0
S7
S6
S5
S4
S3
S2
S1
S0
4144h
7Eh Vendor ID2
T7
T6
T5
T4
T3
T2
T1
T0
REV7
REV6
REV5
REV4
REV3
REV2
REV1
REV0
5368h
NOTES
All registers not shown and bits containing an X are assumed to be reserved.
Odd register addresses are aliased to the next lower even address.
Reserved registers should not be written to.
Zeros should be written to reserved bits.
*
For AC ’97 compatibility, Bit D7 is only available by setting the MSPLT bit, Register 76h. The MSPLT bit enables separate mute bits for the left and right
channels. If MSPLT is not set, Bit D7 has no effect.