Audio Streaming Signals - 2.1 English

DisplayPort RX Subsystem LogiCORE IP Product Guide (PG233)
Document ID
PG233
Release Date
2023-05-25
Version
2.1 English

The DisplayPort RX Sink audio streaming signals are shown in the following table.

Table 1. DisplayPort Sink Audio Interface
Name I/O Description
m_axis_audio_egress_tdata[31:0] O Streaming data output.

[3:0] – PR (Preamble Code)

  • 4’b0001 -> Subframe1 / start of audio block
  • 4’b0010 -> Subframe 1
  • 4’b0011 -> Subframe 2
  • om

[27:4] – Audio Sample Word

[28] – V (Validity Bit)

[29] – U (User Bit)

[30] – C (Channel Status)

[31] – P (Parity)
m_axis_audio_egress_tid [7:0] O

[3:0] – Audio Channel ID

[7:4] – Audio Packet Stream ID
m_axis_audio_egress_tvalid O Valid indicator for audio data from master.
m_axis_audio_egress_tready I Ready indicator from external streaming module.