DP83TC811S-Q1 Automotive Transceivers Texas Instruments DP83TC811S-Q1 Low-Power Automotive PHY 100BASE-T1 Ethernet Physical Layer Transceivers offer physical layer functions required to transmit and receive data over unshielded single twisted-pair cables. The device creates xMII flexibility by supporting standard MII, RMII, RGMII, and SGMII MAC interfaces.