Audio AXI4-Stream Interface - 3.1 English

DisplayPort 1.4 TX Subsystem Product Guide
Document ID
PG299
Release Date
2022-10-19
Version
3.1 English
Table 1. Audio AXI4-Stream Interface
Port Name I/O Description
s_axis_audio_ingress_aclk I AXI4-Stream clock.
s_axis_audio_ingress_aresetn I Active-Low reset.
s_axis_audio_ingress_tdata[31:0] I

AXI4-Stream data input.

[3:0] - Preamble Code
  • 4'b0001: Subframe1/ Start of audio block
  • 4'b0010: Subframe 1
  • 4’b0011: Subframe 2

[27:4] - Audio Sample Word

[28] - Validity Bit (V)

[29] - User Bit (U)

[30] - Channel Status (C)

[31] - Parity (P)
s_axis_audio_ingress_tid[7:0] I

[3:0] - Audio Channel ID

[7:4] - Audio Packet Stream ID
s_axis_audio_ingress_tvalid I Valid indicator for audio data from master.
s_axis_audio_ingress_tready O Ready indicator from DisplayPort source.