STAC9752A Datasheet, PDF (53/106 Pages) Integrated Device Technology – AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK

STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
PC AUDIO
Bit(s) Reset Value
7:6
0
5
0
4:0
0
Name
Reserved
MR5
MR<4:0>
Description
Bits not used, should read back 0
0 = Headphone attenuation is a function of bits 4-0
1 = Forces register bits 4-0 to be 11111
Always reads back 0
Right Channel Headphone Volume Control
00000 = 0dB attenuation
00001 = 1.5dB attenuation
.....
11111 = 46.5dB attenuation
7.1.4.
Master Volume MONO (06h)
Default: 8000h
D15
D14
Mute
D7
D6
Reserved
Bit(s) Reset Value
15
1
14:6
0
5
0
4:0
0
D13
D5
MM5
Name
Mute
Reserved
MM5
MM<4:0>
D12
D4
MM4
D11
Reserved
D3
MM3
D10
D2
MM2
Description
0 = no mute
1 = mute mono
Bit not used, should read back 0
0 = Mono attenuation is a function of bits 4-0
1 = Forces register bits 4-0 to be 11111
Always reads back 0
Mono Volume Control
00000 = 0dB attenuation
00001 = 1.5dB attenuation
.....
11111 = 46.5dB attenuation
D9
D1
MM1
7.1.5.
PC BEEP Volume (0Ah)
Default: 0000h
Additional information on the PC Beep can be found in Section 6.3: page48.
D15
D14
D13
D12
D11
D10
D9
Mute
Reserved
F7
F6
F5
F4
D7
D6
D5
D4
D3
D2
D1
F2
F1
F0
PV3
PV2
PV1
PV0
Bit(s) Reset Value
15
1
14:13
0
Name
Mute
Reserved
Description
0 = No mute
1 = Mute PC BEEP
Bit not used, should read back 0
D8
D0
MM0
D8
F3
D0
RSRVD
IDT™
53
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
V 1.5 1206