82801CA Datasheet, PDF (420/521 Pages) Intel Corporation – I/O Controller Hub 3-S (ICH3-S)

AC ’97 Audio Controller Registers (D31:F5)
13.2 AC ’97 Audio I/O Space (D31:F5)
The AC ’97 I/O space includes Native Audio Bus Master Registers and Native Mixer Registers.
Table 13-2 shows the register addresses for the audio mixer registers.
Table 13-2. Intel^® ICH3 Audio Mixer Register Configuration
Primary
offset
00h
02h
04h
06h
08h
0Ah
0Ch
0Eh
10h
12h
14h
16h
18h
1Ah
1Ch
1Eh
20h
22h
24h
26h
28h
2Ah
2Ch
2Eh
30h
32h
34h
36h
38h
3A–56h
58h
7Ah
7Ch
7Eh
Secondary
Offset
NAMBAR Exposed Registers (D31:F5)
80h
Reset
82h
Master Volume Mute
84h
Headphone Volume Mute
86h
Master Volume Mono Mute
88h
Master Tone (R & L)
8Ah
PC_BEEP Volume Mute
8Ch
Phone Volume Mute
8Eh
Mic Volume Mute
90h
Line In Volume Mute
92h
CD Volume Mute
94h
Video Volume Mute
96h
Aux Volume Mute
98h
PCM Out Volume Mute
9Ah
Record Select
9Ch
Record Gain Mute
9Eh
Record Gain Mic Mute
A0h
A2h
A4h
A6h
A8h
AAh
ACh
AEh
B0h
B2h
B4h
B6h
B8h
BA–F6h
General Purpose
3D Control
AC ’97 RESERVED
Powerdown Ctrl/Stat
Extended Audio
Extended Audio Ctrl/Stat
PCM Front DAC Rate
PCM Surround DAC Rate
PCM LFE DAC Rate
PCM LR ADC Rate
MIC ADC Rate
6Ch Vol: C, LFE Mute
6Ch Vol: L, R Surround Mute
Intel RESERVED
Vendor Reserved
Vendor Reserved
Vendor ID1
Vendor ID2
NOTE:
1. Registers in bold are multiplexed between audio and modem functions
2. Software should not try to access reserved registers
420
Intel^® 82801CA ICH3-S Datasheet