CS42888 Datasheet, PDF (31/61 Pages) Cirrus Logic – 108 dB, 192 kHz 4-In, 8-Out CODEC

4.5.1 I²S
CS42888
ADC/DAC_LRCK
ADC/DAC_SCLK
DAC_SDINx
ADC_SDOUTx
MSB
Left Channel
AOUT 1, 3, 5 or 7
AIN 1 or 3
LSB
MSB
Figure 14. I²S Format
4.5.2 Left-Justified
Right Channel
AOUT 2, 4, 6 or 8
AIN 2 or 4
ADC/DAC_LRCK
ADC/DAC_SCLK
DAC_SDINx
ADC_SDOUTx
MSB
Left Channel
Right Channel
LSB
MSB
AOUT 1, 3, 5 or 7
AIN 1 or 3
AOUT 2, 4, 6 or 8
AIN 2 or 4
Figure 15. Left-Justified Format
4.5.3 Right-Justified
LSB
MSB
LSB
MSB
ADC/DAC_LRCK
ADC/DAC_SCLK
DAC_SDINx
ADC_SDOUTx
Left Channel
Right Channel
MSB
LSB
MSB
LSB
AOUT 1, 3, 5 or 7
AIN 1 or 3
AOUT 2, 4, 6 or 8
AIN 2 or 4
Figure 16. Right-Justified Format
4.5.4 OLM #1
OLM #1 serial audio interface format operates in Single- or Double-Speed Mode only and will master or
slave ADC/DAC_SCLK at 128 Fs.
ADC/DAC_LRCK
ADC/DAC_SCLK
DAC_SDIN1
DAC_SDIN4
64 clks
Left Channel
MSB
LSB MSB
LSB MSB
LSB
AOUT1
AOUT3
AOUT5
20 clks
20 clks
20 clks
AOUT7
20 clks
64 clks
Right Channel
MSB
LSB MSB
LSB MSB
LSB
AOUT2
AOUT4
AOUT6
20 clks
20 clks
20 clks
AOUT8
20 clks
MSB
ADC_SDOUT1
AIN1
20 clks
AIN3
-
AIN2
AIN4
20 clks
20 clks
20 clks
20 clks
Figure 17. One-Line Mode #1 Format
-
20 clks
DS717F1
31