STAC9766 Datasheet, PDF (55/97 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
15:11
0
Name
RESERVED
10:8
0
SL2:SL0
7:3
0
RESERVED
2:0
0
SR2:SR0
8.1.14. Record Gain (1Ch)
Description
Bits not used, should read back 0
Left Channel Input Select
000 = Mic
001 = CD In (left)
010 = Video In (left)
011 = Aux In (left)
100 = Line In (left)
101 = Stereo Mix (left)
110 = Mono Mix
111 = Phone
Bits not used, should read back 0
Right Channel Input Select
000 = Mic
001 = CD In (right)
010 = Video In (right)
011 = Aux In (right)
100 = Line In (right)
101 = Stereo Mix (right)
110 = Mono Mix
111 = Phone
Default: 8000h (corresponding to 0 dB gain with mute on)
D15
Mute
D7
D14
D13
D12
RESERVED
D6
D5
D4
RESERVED
D11
GL3
D3
GR3
D10
GL2
D2
GR2
Bit(s)
15
14:12
Reset Value
1
0
11:8
0
7:4
0
3:0
0
Name
MUTE
RESERVED
GL<3:0>
RESERVED
GR<3:0>
Description
Mutes Record Gain
Bits not used, should read back 0
Left Channel Volume Control
0000 = 0dB gain
0001 = 1.5dB gain
....
1111 = 22.5dB gain
Bits not used, should read back 0
Right Channel Volume Control
0000 = 0dB gain
0001 = 1.5dB gain
....
1111 = 22.5dB gain
D9
GL1
D1
GR1
D8
GL0
D0
GR0
IDT™
55
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
V 7.4 12/06