The HDMI 1.4/2.0 TX Subsystem in general responds to the following two events:
- Hot-plug signal (HPD) from the sink device
- Software user application to indicate a change of video stream (for example, change of video resolution)
The main program flow is shown in the following figure. At execution, the software application initializes the HDMI 1.4/2.0 TX Subsystem IP and registers the callback functions in the provided hooks.
Figure 1. TX Flow