MorethanIP USXGMII Converter Core performs the USXGMII, datarate adaptation by replicating data at the serial link. This avoids the need for reconfiguring the serial link when data rates change. The MorethanIP Core also supports Autonegotiation.
In addition, MorethanIP USXGMII Multi-Port Multiplexer can be used to multiplex multiple MAC data streams possibly at different rates for transfer to a multi-port PHY device through only a single serial link.
Block Diagram of the USXGMII Converter IP Core