ICE1232 IC Ensemble, ICE1232 Datasheet - Page 16

• Manufacturer Part Number: ICE1232
• Description: ac 97 2.1 VSR Audio Codec With 3D
• Manufacturer: IC Ensemble

IC Ensemble, Inc .
Mono Output Control Register (Index 06h)
Mute
MM[4:0]
PC Beep Input Volume Control Register (Index 0Ah)
Mute
PV[3:0]
16
Mute
Mute
D15
D15
D14
D14
–
–
D13
D13
–
–
Table 17. Stereo and Mono Output Attenuation
D12
Mono Output Mute Control
“1” :
“0” :
Mono Output Volume Control
These five bits select the level of attenuation applied to the Mono Output signal. The level
of attenuation is programmable from 0dB to -46.5dB in 1.5dB increments, providing a
total of 32 programmable levels. Please refer to Table 17 on page 16 for details.
D12
PC Beep Input Mute Control
“1” :
“0” :
PC Beep Input Volume Control
These four bits select the level of attenuation applied to the PC beep input signal. The
level of attenuation is programmable from 0dB to -45dB in 3dB increments, providing a
total of 16 programmable levels. The beep gain is set at 0dB when PV[3:0] = 0h. Even
though the default of the input volume control is mute, as long as RESET# is active, PC
Beep will be passively routed to the line outputs.
–
–
28
29
30
31
0
1
2
3
4
5
..
..
D11
D11
–
–
Mute enabled
Mute disabled
Mute enabled
Mute disabled
M4
0
0
0
0
0
0
..
..
1
1
1
1
D10
D10
–
–
M3
0
0
0
0
0
0
..
..
1
1
1
1
D9
D9
–
–
M2
0
0
0
0
1
1
..
..
1
1
1
1
D8
D8
–
–
D7
D7
–
M1
–
0
0
1
1
0
0
..
..
0
0
1
1
D6
D6
–
–
M0
0
1
0
1
0
1
..
..
0
1
0
1
D5
D5
–
–
Level (dB)
MM4
PV3
D4
D4
-42.0
-43.5
-45.0
-46.5
-1.5
-3.0
-4.5
-6.0
-7.5
0.0
..
..
MM3
PV2
D3
D3
MM2
PV1
D2
D2
MM1
Preliminary
PV0
D1
D1
Rev. 1.5, 1/10/00
MM0
D0
D0
–
Default
Default
8000h
8000h