Virtex-4 RocketIO MGT User Guide www.xilinx.com 27UG076 (v4.1) November 2, 2008RPrefaceAbout This GuideThe Virtex®-4 RocketIO™ MGT User Guide provides the product designer with the detailedtechnical information needed to successfully implement the RocketIO MGT in Virtex-4Platform FPGA designs. For information on the Virtex-II Pro RocketIO and theVirtex-II Pro X RocketIO X transceivers, see UG024, RocketIO Transceiver User Guide, andUG035, RocketIO X Transceiver User Guide.MGT FeaturesRocketIO MGTs have flexible, programmable features that allow a multi-gigabit serialtransceiver to be easily integrated into any Virtex-4 design:• 622 Mb/s to 6.5 Gb/s data rates• 8 to 24 transceivers per FPGA• 3-tap transmitter pre-emphasis (pre-equalization)• Receiver continuous time equalization• Optional on-chip AC coupled receiver• Digital oversampled receiver for data rates up to 1.25 Gb/s• Receiver signal detect and loss of signal indicator and out-of-band (OOB) signalreceiver• Transmit driver idle state for OOB signaling (both outputs at VCM )• 8B/10B encoding• No data encoding (pass-through mode) with digital receiver• Channel bonding• Flexible Cyclic Redundancy Check (CRC) generation and checking• Pins for transmitter and receiver termination voltage• User reconfiguration using the Dynamic Reconfiguration Port• Multiple loopback paths• NRZ signaling
