1.Disable audio by writing a 0x00 to the TX_AUDIO_CONTROL register. The disable bit also flushes the buffers in DisplayPort source and sets MUTE bit in VB-ID.
2.Write the audio information frame. Based on your requirements, this could be optional for some systems. The audio information frame consists of eight writes.
3.Write channel count to the TX_AUDIO_CHANNELS register (the value is actual count minus 1).
4.If the system is using synchronous clocking, then write the MAUD and NAUD values into the TX_AUDIO_MAUD and TX_AUDIO_NAUD registers.
5.Enable audio by writing a 0x01 to the TX_AUDIO_CONTROL register.