Q1. What other Ethernet IP cores are available?A1. See www.xilinx.com/ethernet for a list of IP Ethernet cores.
Q2. What are the differences between hardened Tri-mode Ethernet MAC and soft cores?A2. Refer to the Differences between the Embedded Tri-Mode Ethernet MAC and Soft IP Cores Appendix in the LogiCORE IP Tri-Mode Ethernet MAC UG138:
http://www.xilinx.com/support/documentation/ipcommunicationnetwork_ethernet_trimodeethernetmac.htmQ3. Can the TEMAC be adjusted to transmit an IFG less than the IEEE 802.3 specification?A3. No, CLIENTEMACTXIFGDELAY can only be used to increase the IFG from the minimum transmitted IFG of 12bytes in full duplex mode. For more information on adjusting the IFG, see the Client Interface -> Transmitting Outbound Frames -> Interframe Gap Adjustment in the LogiCORE IP Tri-Mode Ethernet MAC UG138:
http://www.xilinx.com/support/documentation/ipcommunicationnetwork_ethernet_trimodeethernetmac.htmQ4. What is the min IFG that can be received by the TEMAC?A4. The TEMAC is tested to the minimum received IFG specified by the IEEE 802.3 specification.
Q5. What can cause RXBADFRAME to be asserted?A5. The RX Statistics can be checked to see the source of the bad frame. A complete list of possible causes of a bad frame is available in the RX Client Interface section of the LogiCORE IP Tri-Mode Ethernet MAC UG138:
http://www.xilinx.com/support/documentation/ipcommunicationnetwork_ethernet_trimodeethernetmac.htmQ6. What PHYs will be compatible with this core/ which have been tested in hardware?A6. Hardware testing was done with the ML505/SP601/SP605/ML605 boards which has a Marvel 88EE1111 PHY on them, but the TEMAC will be compatible with other PHYs designed the IEEE 802.3 specification. Media Independent Interface (MII) and Gigabit Media Independent Interface (GMII) Interface must operate at 2.5V when using Virtex-6 FPGAs.