Resets - 3.1 English

HDMI 1.4/2.0 Receiver Subsystem Product Guide (PG236)

Document ID
Release Date
3.1 English

Each AXI input interface has its own reset signal. The reset signals, s_axi_cpu_aresetn, s_axis_video_aresetn and s_axis_audio_aresetn are for S_AXI_CPU_IN, VIDEO_OUT (AXI4-Stream Video Interface), and AUDIO_OUT respectively. These three reset signals are active-Low. Because the reset signal is used across multiple sub-blocks in the subsystem, keep the system in the reset state until all the clocks are stabilized. You can use the locked signal from the clock generation block as a reset signal.

Note: There is no dedicated hardware reset for VIDEO_OUT interface when Native Video interface is selected. However, the HDMI 2.1 RX Subsystem outputs a video_rst signal, which you can use to reset its supporting Native Video Source processing modules.