ICE1230 IC Ensemble, ICE1230 Datasheet - Page 18

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

IC Ensemble, Inc .
Register Description ( continued... )
PCM Output Control Register (Index 18h)
Mute
GL[4:0]
GR[4:0]
Record Select Register (Index 1Ah)
SL[2:0]
SR[2:0]
18
Mute
D15
D15
–
D14
D14
–
–
D13
D13
–
–
Left Channel Gain Control
Right Channel Gain Control
Record Source Select (Right Channel)
D12
PCM Output Mute Control
“1” :
“0” :
These five bits select the gain applied to the LEFT channel of the PCM Output signal. The
gain is programmable from -34.5dB to 12dB in 1.5dB increments, providing a total of 32
programmable levels. Please refer to Table 15 on page 19 for details.
These five bits select the gain applied to the RIGHT channel of the PCM Output signal.
The gain is programmable from -34.5dB to 12dB in 1.5dB increments, providing a total of
32 programmable levels. Please refer to Table 15 on page 19 for details.
D12
Record Source Select (Left Channel)
These bits determine the record source for the left channel.
These bits determine the record source for the right channel.
GL4
SR2
SL2
–
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D11
GL3
D11
SR1
SL1
–
Mute enabled
Mute disabled
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D10
GL2
D10
SL2
SR0
SL0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
GL1
SL1
D9
D9
Right Record Source
Left Record Source
Stereo Mix (R)
Stereo Mix (L)
Video In (R)
GL0
SL0
Video In (L)
D8
D8
Line In (R)
Line In (L)
Aux In (R)
Aux In (L)
Mono Mix
Mono Mix
CD (R)
CD (L)
Phone
Phone
Mic
Mic
D7
D7
–
–
D6
D6
–
–
D5
D5
–
–
GR4
D4
D4
–
GR3
D3
D3
–
GR2
SR2
D2
D2
Preliminary
GR1
SR1
D1
D1
Rev. 1.3, 9/21/98
GR0
SR0
D0
D0
Default
Default
8808h
0000h