W83971D Datasheet, PDF (15/58 Pages) Winbond – AC97 AUDIO CODEC

Preliminary W83971D
6.4 Mono Output Control Register (Index 06h)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Default
Reg#
06h Mute
MM5 MM4 MM3 MM2 MM1 MM0 8000h
6.4.1 Mute Mono Output Mute Control
"1" : Mute enabled
"0" : Mute disabled
6.4.2 MM[5:0] Mono Output Volume Control
These six bits select the level of attenuation applied to the Mono Output signal. The level of
attenuation is programmable from 0dB to -94.5dB in 1.5dB increments, providing a total of 64
programmable levels.
Please refer to Stereo and Mono Output Attenuation.
6.4.3 Stereo and Mono Output Attenuation
MM0
MM1
MM2
0
0
0
0
1
0
0
0
2
0
0
0
3
0
0
0
4
0
0
0
5
0
0
0
..
..
..
..
..
..
..
..
60
1
1
1
61
1
1
1
62
1
1
1
63
1
1
1
MM3
0
0
0
0
1
1
..
..
1
1
1
1
MM4
0
0
1
1
0
0
..
..
0
0
1
1
MM5
0
1
0
1
0
1
..
..
0
1
0
1
LEVEL(DB)
0.0
-1.5
-3.0
-4.5
-6.0
-7.5
..
..
-90.0
-91.5
-93.0
-94.5
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Publication Release Date: July 1999
Revision A1