ADAU1701 Simultaneous use of serial 1 data and built in ADC


I'm currently working on a project where I like to use the built in audio ADC's and Input_Sdata_in1 simultaneously

But when I switch MP4 to Input_LRCLK_in and MP5 to Bclk_In in order to slave the Input_Sdata_in1  to the external

audio clocks, the built in ADC stops working. Is there a limitation in using the ADC0/1 and the serial audio inputs

together? Is there anything else I need to take care off?

Thanks in advance

Best regards