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TLV320ADC5140: TLV320ADC5140 Abnormal of I2S FOMART

chunhe dong
Prodigy 20 points
Part Number: TLV320ADC5140

Hello,when I encountered the following problems when using this chip:

Configuration conditions is：slave mode, MCLK 24.576M,BCK 3.072M,LRK 48K，Analog 4-channel input，I2S mode
question is I2S just have L channel,R is nothing,I have set R11->0x00,R12->0x01,R13->0x40,R14->0x41 and read R118 is 0XF0.
Could it be that it does not support outputting two channels on one data pin in I2S mode?
Please support,thanks