Multi-Channel Audio - 3.0 English

DisplayPort 1.4 TX Subsystem Product Guide (PG299)

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3.0 English

The DisplayPort TX requires Info frame configuration to transmit multi-channel audio. The Info frame contains the number of channels and its speaker mapping. The AXI4-Stream TID signal should contain the Audio channel ID along with audio data, based on the number of channels configured.

For multi-stream audio, secondary data packet ID in the Info frame packet should match with the stream ID over the audio AXI4-Stream interface (TID[7:4]).