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.