https://docs.amd.com/r/en-US/pg251-usxgmii
USXGMII Ethernet Subsystem Product Guide (PG251) - 2.0 English - Implements an Ethernet Media...
Implements an Ethernet Media Access Controller (MAC). Contains a mechanism to carry a single port of 10M, 100M, 1G, 2.5G, 5G or 10GE over an IEEE 802.3 Clause...
product guide