STAC9766 Datasheet, PDF (54/97 Pages) Integrated Device Technology – TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING

STAC9766/9767
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
PC AUDIO
Bit(s) Reset Value
7:5
0
Name
RESERVED
Description
Bit not used, should read back 0
4:0
0
GR<4:0>
Right Aux Volume Control
00000 = 12dB gain
00001 = 10.5dB gain
.....
01000 = 0dB gain
.....
11111 = -34.5dB gain
8.1.12. PCMOut Volume (Index 18h)
Default: 8808h.
D15
Mute
D7
D14
D13
RESERVED
D6
D5
RESERVED
Bit(s) Reset Value
Name
15
1
Mute
14:13
0
RESERVED
12:8
0
GL<4:0>
7:5
0
RESERVED
4:0
0
GR<4:0>
D12
GL4
D4
GR4
D11
GL3
D3
GR3
D10
GL2
D2
GR2
Description
0 = No mute
1 = Mute PCM out
Bit not used, should read back 0
Left PCM Volume Control
00000 = 12dB gain
00001 = 10.5dB gain
.....
01000 = 0dB gain
.....
11111 = -34.5dB gain
Bit not used, should read back 0
Right PCM Volume Control
00000 = 12dB gain
00001 = 10.5dB gain
.....
01000 = 0dB gain
.....
11111 = -34.5dB gain
D9
GL1
D1
GR1
8.1.13. Record Select (1Ah)
Default: 0000h (corresponding to Mic in)
Used to select the record source independently for right and left.
D15
D14
D13
D12
D11
D10
D9
RESERVED
SL2
SL1
D7
D6
D5
D4
D3
D2
D1
RESERVED
SR2
SR1
D8
GR0
D0
GR0
D8
SL0
D0
SR0
IDT™
54
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
V 7.4 12/06