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Chapter 12: System Integration
Because the TEMAC core can often be used in different clocking modes, note the following:
•The Ethernet transmitter client clock domain must always be connected to the
tx_clk input of the Ethernet AVB Endpoint core. Additionally, the transmitter clock enable, as used with the TEMAC, must always be connected to the tx_clk_en input of the Ethernet AVB Endpoint core.
•The Ethernet receiver client clock domain must always be connected to the rx_clk input of the Ethernet AVB Endpoint core. Additionally, the receiver clock enable, as used with the TEMAC, must always be connected to the rx_clk_en input of the Ethernet AVB Endpoint core.
•The host_clk share the same PLB interface.
inputs of the Ethernet AVB Endpoint and of the TEMAC must always clock source. If desired, this can also be the clock source used for the
114 | www.xilinx.com | Ethernet AVB Endpoint User Guide |
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| UG492 July 23, 2010 |