Programming the DisplayPort Source

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

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2.4 English

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.