Innosilicon eDP/DP TX IP is used to transmit video, audio, and auxiliary data from video source device to display device. It contains the digital controller and the physical layer. The digital controller processes the input video and audio data and outputs encoded data to the physical layer. The physical layer contains the main link, the AUX channel, PLL, and bias circuit, which converts the parallel data to serial stream.

Innosilicon eDP/DP RX IP is used to receive and recover video and audio data from the DP/eDP 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 output to the digital controller. The digital controller decodes the parallel data and recovers the video and audio information.

The AUX channel employs a half-duplex bidirectional link to transmit and receive auxiliary information, such as EDID information and link status, between a transmitter and a receiver device. PLL generates the clocks required by data channels and the digital logic. The bias circuit generates voltage and current reference.