The fully integrated Physical Coding Sublayer (PCS) and Media Access Controller (MAC) core for 50Gbps Ethernet applications is complaint with IEEE 802.3cd-2018 standard and Ethernet Technology Consortium 50GE standard. The interface to the PMA supports either 2x 25Gbps or a single 50Gbps bi-directional, serial interface. The PCS sublayer includes encoding, transcoding, scrambling, FEC layer and symbol distribution.
The north-bound interface from the MAC provides a configurable n x 64-bit system interface.
The southbound interface performs the mapping of transmit and receive data streams (at the PMA layer) to the on-chip SERDES. This core is responsible for channel alignment and KP4 FEC management. The PCS supports an interface for 50GBASE-CR or 50GBASE-KR.