PCM1863EVM: input signal detection

Tool/software:

Hi

My customer got a question that when they use PCM1863 EVM with PCC2 software

The input signal they want to detect is input by R/L of VIN1

What they do in SLEEP mode is as follows:

1. Write Register 0x70 BIT 1 as 1 >>>Set the mode to SLEEP mode
2. Press "Refresh" on "Register" in the PCC2 operation interface
3. Check that the value of Register 0x32 is "0x03" >> That's right, because there is an input signal and bit0/1 must be 1 in SLEEP mode.

However

In Active mode they operate:

1. Write Register 0x70 BIT 1 as 0>>>Set the mode to Active mode
2. Press "Refresh" on "Register" in the PCC2 operation interface
3. Check that the value of Register 0x32 is "0x00" >> Error because there is an input signal in Active mode, bit0/1 should be 0, and the remaining bits should be 1 because there is no signal input.

So they should read that the value of Register 0x32 is "0xFC"

They also checked that it is not in "automatic clipping suppression mode"

My customer want to ask if they want to know in active mode, which channel currently has signal input. What should they do? Can you provide detailed steps and suggestions?

Thanks!