Different Xilinx device families contain Tri-Mode Embedded Ethernet Media Access Controller (MAC) blocks, which are used in Ethernet applications. The Ethernet MACs are paired within a TEMAC block, share a common host and DCR interface, but are independently configurable to meet all common Ethernet system connectivity needs. Refer to the applicable EMAC User Guide for a detailed description of the block capabilities and configuration.
In XPE, you need to only enter the TEMAC operating clock frequency as shown in the following figure. You typically need to know the mode and operating speed to obtain the correct clock frequency.