CS4227 Datasheet, PDF (24/36 Pages) Cirrus Logic – Six Channel, 20-Bit Codec

CS4227
2.18 Output Attenuator Data Byte (4, 5, 6, 7, 8, 9)
7
6
5
4
3
2
1
0
ATT6
ATT5
ATT4
ATT3
ATT2
ATT1
ATT6-ATT0
Sets attenuator level
0 - No attenuation
127 - 127 dB attenuation
ATT0 represents 1.0 dB of attenuation
This register defaults to 7Fh.
2.19 DAC Status Report Byte (Read Only) (10)
7
6
5
4
3
2
1
0
-
ACC6
ACC5
ACC4
ACC3
ACC2
ACC6-ACC1
Acceptance Bit
0 - ATT6-ATT0 has been accepted.
1 - New setting is waiting for zero-crossing to be accepted.
This register is read-only.
2.20 ADC Control Byte (11)
7
6
IS1
IS0
5
4
3
2
1
0
AIS1
AIS0
MUTM
MUTR
MUTL, MUTR, MUTM - Left, right and mono channel mute control
0 - Normal output level
1 - Selected ADC output muted
AIS1-AIS0
ADC analog input mux control
0 - Selects stereo pair 1
1 - Selects stereo pair 2
2 - Selects stereo pair 3
3 - Differential Input
IS1-IS0
Input mux selection
0 - Stereo ADC output to SDOUT1, Mono ADC output to SDOUT2
1 - Auxiliary Digital Input Port to SDOUT1, Mono ADC output to SDOUT2
2 - Auxiliary Digital Input Port to SDOUT1, Stereo ADC output to SDOUT2
3 - Not used.
This register defaults to 00h.
0
ATT0
0
ACC1
0
MUTL
24
DS281PP2