|The Xilinx Tri-Mode Ethernet MAC core is a parameterizable LogiCORE™ solution for use in networking equipment such as switches and routers. The customizable TEMAC core enables system designers to implement a broad range of integrated Ethernet designs, from low cost 10/100 Ethernet to higher performance 1 Gigabit ports. The TEMAC core is designed to the IEEE 802.3 specification and operates in 1000Mbps, 100 Mbps, and 10 Mbps modes. In addition, it supports both half and full duplex operation. In 1000 Mbps mode, the TEMAC core interfaces with industry standard PHY devices through a GMII/RGMII. In 10/100 Mbps mode, the TEMAC uses the MII.