Q26 Extreme - Digital Audio Interface (PCM)

Hi all,
we are trying to use the Digital Audio Interface (PCM) of Q26 Extreme interfacing an audio codec.

We are interested only in audio samples (not other slots of this IOM2 compliant PCM port).

Some questions below:

  1. Is there any way to get only audio samples in a “listen buffer” or select only audio slot?
  2. where can we found samples coming at the pcm port input?
  3. how to use this port?

Please any additional suggestion will be appretiated.

Thanks