ICE1232 IC Ensemble, ICE1232 Datasheet - Page 17

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

Preliminary
Phone Input Volume Control Register (Index 0Ch)
Mute
GN[4:0]
Mic Input Volume Control Register (Index 0Eh)
Mute
20dB
GN[4:0]
Line Input Control Register (Index 10h)
Mute
GL[4:0]
GR[4:0]
Rev. 1.5, 1/10/00
Mute
Mute
Mute
D15
D15
D15
D14
D14
D14
–
–
–
D13
D13
D13
–
–
–
D12
Phone Input Mute Control
“1” :
“0” :
Phone Input Volume Control
These five bits select the gain applied to the Phone Input 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 18 on page 20 for details.
D12
Mic Input Mute Control
“1” :
“0” :
Mic Boost Control
“1” :
“0” :
Mic Input Volume Control
These five bits select the gain applied to the Mic Input 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 18 on page 20 for details.
D12
Line Input Mute Control
“1” :
“0” :
Left Channel Gain Control
These five bits select the gain applied to the LEFT channel of the Line Input 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 18 on page 20 for details.
Right Channel Gain Control
These five bits select the gain applied to the RIGHT channel of the Line Input 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 18 on page 20 for details.
GL4
–
–
D11
D11
D11
GL3
–
–
Mute enabled
Mute disabled
Mute enabled
Mute disabled
Fixed 20dB gain enabled
Fixed 20dB gain disabled
Mute enabled
Mute disabled
D10
D10
D10
GL2
–
–
GL1
D9
D9
D9
–
–
GL0
D8
D8
D8
–
–
D7
D7
D7
–
–
–
20dB
D6
D6
D6
–
–
D5
D5
D5
–
–
–
GN4
GN4
GR4
D4
D4
D4
GN3
GN3
GR3
D3
D3
D3
GN2
GN2
GR2
D2
D2
D2
GN1
GN1
GR1
D1
D1
D1
ICE1232
GN0
GN0
GR0
D0
D0
D0
Default
Default
Default
8008h
8008h
8808h
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