The Realtek RTL8310SR is a highly integrated Layer 2 switch controller. It integrates one low-power
Giga-PHY that support 1000Base-T/100Base-T/10Base-T, and seven FE-PHYs that support 100Base-T/
10Base-T. Moreover, it provides two extra GMAC for specific applications. Extension GMAC1 supports
RGM