ICE1230 IC Ensemble, ICE1230 Datasheet - Page 14

• Manufacturer Part Number: ICE1230
• Description: ac 97 Audio Codec
• Manufacturer: IC Ensemble

IC Ensemble, Inc .
Register Description ( continued... )
Stereo Output Control Register (Index 02h)
Mute
ML[5:0]
MR[5:0]
Mono Output Control Register (Index 06h)
Mute
MM[5:0]
14
Mute
Mute
D15
D15
D14
D14
–
–
ML5
D13
D13
–
Table 14. Stereo and Mono Output Attenuation
Stereo Output Mute Control
Master Output (Left Channel) Volume Control
Master Output (Right Channel) Volume Control
D12
ML4
“1” :
“0” :
These six bits select the level of attenuation applied to the Left channel of the Stereo
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 Table 14 on
page 14 for details.
These six bits select the level of attenuation applied to the Right channel of the Stereo
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 Table 14 on
page 14 for details.
D12
Mono Output Mute Control
“1” :
“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 Table 14 on page 14 for details.
–
60
61
62
63
0
1
2
3
4
5
..
..
ML3
D11
D11
–
Mute enabled
Mute disabled
Mute enabled
Mute disabled
M5
0
0
0
0
0
0
..
..
1
1
1
1
D10
ML2
D10
–
M4
0
0
0
0
0
0
..
..
1
1
1
1
ML1
D9
D9
–
M3
ML0
0
0
0
0
0
0
..
..
1
1
1
1
D8
D8
–
D7
D7
–
–
M2
0
0
0
0
1
1
..
..
1
1
1
1
D6
D6
–
–
M1
0
0
1
1
0
0
..
..
0
0
1
1
MM5
MR5
D5
D5
M0
0
1
0
1
0
1
..
..
0
1
0
1
MR4
MM4
D4
D4
MM3
MR3
D3
D3
Level (dB)
-90.0
-91.5
-93.0
-94.5
-1.5
-3.0
-4.5
-6.0
-7.5
0.0
..
..
MR2
MM2
D2
D2
MM1
Preliminary
MR1
D1
D1
Rev. 1.3, 9/21/98
MM0
MR0
D0
D0
Default
Default
8000h
8000h