Changes between Version 30 and Version 31 of HardwareUsersGuides/FPGABoard_v2.2/MGTs


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Timestamp:
Oct 8, 2009, 5:27:16 PM (15 years ago)
Author:
murphpo
Comment:

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  • HardwareUsersGuides/FPGABoard_v2.2/MGTs

    v30 v31  
    7979[[Image(HardwareUsersGuides/FPGABoard_v2.2/Files:FPGABoard_ExtClk.jpg)]] [[BR]] '''External MGT clock input and output'''
    8080
    81 
    82 More information regarding MGT designs is included in Xilinx documentation ([http://www.xilinx.com/support/documentation/user_guides/ug076.pdf MGT User Guide]).
    83 
    84 === Connectors & Cables ===
     81== Connectors & Cables ==
    8582Four MGTs are wired to Infiniband-keyed HSSDC2 jacks. You must use an Infiniband-keyed 100Ω HSDDC2-HSDDC2 cable to connect two FPGA boards together. One such cable is made by Molex ([http://www.molex.com/molex/products/datasheet.jsp?part=active/0739392002_CABLE_ASSEMBLIES.xml&channel=Products&Lang=en-US Molex HSDDC2 Cables]).
    8683
    87 The two SFP connectors require an additional module to connect Ethernet cables. [http://www.molex.com/molex/family/intro.jsp?superFamOID=-16821&pageTitle=Introduction&channel=Products&familyOID=-12001&chanName=family&frellink=Introduction Molex] creates one such module supported by the FPGA.
     84The two SFP connectors require an additional module. One common SFP module is a Gigabit Ethernet interface. We have successfully tested two Gigabit Ethernet modules: Molex part 74741-0005 (available from [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=WM1665-ND Digikey]) and Add-On Computer part GLC-T-AO ([http://addoncomputer.com/products/glc-t-ao.html details]). Other modules which adhere to the SFP specification should work as well.
     85
     86== Designing with MGTs ==
     87Xilinx provides extensive documentation for the Virtex-4 MGTs in the [http://www.xilinx.com/support/documentation/user_guides/ug076.pdf Virtex-4 RocketIO Multi-Gigabit Transceiver User Guide]).
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