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_IN
(AXI4-Stream Video Interface), and AUDIO_IN
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 the VIDEO_IN interface when Native Video interface is
selected. However, the HDMI 1.4/2.0 TX Subsystem outputs a
video_rst
signal, which you can use to reset its
Native Video Source generation modules.