Secondary Channel Operation - 3.0 English

DisplayPort 1.4 RX Subsystem Product Guide (PG300)

Document ID
Release Date
3.0 English

The current version of the DisplayPort core supports eight-channel Audio. The DisplayPort Audio IP core is offered as modules to provide flexibility to modify the system as needed.

As shown in the following figure, the Audio interface to the DisplayPort core is defined using the AXI4-Stream interface.

Audio data and secondary packets are received from the main link and stored in internal buffers of the DisplayPort Sink core. The AXI4-Stream interface of the DisplayPort core transfers audio samples along with control bits. The DisplayPort Sink should never be back pressured.

Figure 1. Audio Data Interface of DisplayPort Sink System