Cirrus Logic CS42L56 - Manual (Page 73)

DS851F2 73
CS42L56
6.22 ADC & PCM Channel Mixer (Address 19h)
6.22.1 PCM Mix Channel Swap
Configures a mix/swap of the PCM Mix to the headphone/line outputs.
6.22.2 ADC Mix Channel Swap
Configures a mix/swap of the ADC Mix to the headphone/line outputs.
6.23 AIN Reference Configuration, ADC MUX (Address 1Ah)
6.23.1 Analog Input 2 x Reference Configuration
Configures the analog input 2 x reference.
6.23.2 Analog Input 1 x Reference Configuration
Configures the analog input 1 x reference.
7 6 5 4 3 2 1 0
PCMBSWP1 PCMBSWP0 PCMASWP1 PCMASWP0 ADCBSWP1 ADCBSWP0 ADCASWP1 ADCASWP0
PCMxSWP[1:0] PCM Mix to HP/LINEOUTA PCM Mix to HP/LINEOUTB
00 Left Right
01
(Left + Right)/2 (Left + Right)/2
10
11
Right Left
ADCxSWP[1:0] ADC Mix to HP/LINEOUTA Channel ADC Mix to HP/LINEOUTB Channel
00 Left Right
01
(Left + Right)/2 (Left + Right)/2
10
11
Right Left
7 6 5 4 3 2 1 0
AIN2B_REF AIN2A_REF AIN1B_REF AIN1A_REF ADCBMUX1 ADCBMUX0 ADCAMUX1 ADCAMUX0
AIN2x_REF Analog Input Configuration
0
AIN2x is configured as a single-ended input, referenced to the internal ADC common-mode voltage. If both
AIN2 channels are configured as single-ended, AIN2REF/AIN3B can be used as an additional single-ended
input, referenced to the internal ADC common-mode voltage.
1 AIN2x is configured as a pseudo-differential input, referenced to AIN2REF/AIN3B.
AIN1x_REF Analog Input Configuration
0
AIN1x is configured as a single-ended input, referenced to the internal ADC common-mode voltage. If both
AIN1 channels are configured as single-ended, AIN1REF/AIN3A can be used as an additional single-ended
input, referenced to the internal ADC common-mode voltage.
1 AIN1x is configured as a pseudo-differential input, referenced to AIN1REF/AIN3A.