This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
This is done automatically on the UB947 based on the connected DES and the input PCLK to the SER. Register 0x5A[5:4] will display the current status.
However, you may disable the dual mode auto detect by setting reg 0x5B[2], or force dual mode in reg 0x5B[1:0].