The GEM provides packet interface and support for the IEEE Std 1588 in the PL. The packet streaming interface (FIFO interface) from the GEM (bypassing the DMA) is available to the PL for implementation of additional functionality like packet inspection or audio-video broadcast (AVB). Additional signals for supporting the IEEE Std 1588 are also available to the PL. For details on this interface, refer to GEM Ethernet.
The DisplayPort streaming interface for video and audio to/from the PL provides video and audio interfaces to the PL. It can take video/audio input from the PL and direct video/audio output to the PL. For details on this interface, refer to DisplayPort Controller.