Virtex-6 FPGAs incorporate four embedded tri-mode Ethernet media access controller (MAC) blocks (with the exception of the Virtex-6 LX760 device) to provide flexible connectivity while freeing user logic resources and reducing power consumption. 10/100/1000 Mbps tri-mode EMAC capabilities are IEEE 802.3 compliant and UNH-interoperability tested and certified. They offer:

• 2.5Gbps mode for higher bandwidth using custom protocols
• Programmable PHY Interface
• MII/GMII with SelectIO interface
• SGMII when used with RocketIO™ transceivers (requires external phy)
• Real-time statistics interface ports for performance monitoring of both Tx and Rx frames
• Jumbo frames support
• Receive address filter to accept/reject packets
• DCR-bus connection to microprocessors
• Complete single-chip solution for 1000 Base-X when using RocketIO transceivers (no external phy required)
• Ideal for network management or remote FPGA monitoring
• User configurable interface