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tom_stuttgart
Newbie
Newbie
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Registered: ‎05-23-2011

Virtex-4 MGT: DFE settings

Dear community,

 

does anybody know if it is possible to use the DFE feature (decision feedback equalization) with a Virtex-4 board?

 

I have read in the document "Virtex-4 RocketIO Bit-Error Rate Tester" on page 31 that "although DFE controls are provided, the DFE feature is not supported in the Virtex-4 MGT"

 

Does this mean that it doesn't exist or just that there is no official description from Virtex?

 

If it is possible, does anybody know some document where I can find more information about the parameters. Especially the RXEQ[61:56] (DFE_CTRL) setting I need information on. I guess the other settings (TAP_C1, TAP_C2, etc.) will be set by try and then look at the Bit Error Rate.

 

Thanks for help.

 

Thomas

Germany

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