Innosilicon HDMI TX IP is used to transmit video and audio data from the video source device to the display device. It contains the digital controller and the physical layer. The digital controller processes the input video, audio data, and output encoded data to the physical layer. The physical layer contains clock channel, data channels, PLL, and bias circuit, which converts the parallel data to serial stream.

Innosilicon HDMI RX IP is used to receive and recover video and audio data from the HDMI source device. It also contains the physical layer and the digital controller. The physical layer converts the received serial stream to digital parallel data and outputs to the digital controller. The digital controller decodes the parallel data and recovers the video and audio information.