- Disable Audio by writing
0x00
to the RX_AUDIO_CONTROL register. The disable bit also flushes the buffers
in the DisplayPort Sink. When there is a change in video/audio parameters, AMD recommends following this step.
- Enable audio by writing
0x01
to the RX_AUDIO_CONTROL register.
- To read the Info packet, poll the RX_AUDIO_STATUS[0]
register, and when asserted, read all eight words.
- MAUD and NAUD are available as output ports and also in
registers. Use these values per the design clocking structure. For example, in software, a
poll routine can be used to detect a change and trigger a PLL-M and N value
programming.