Hi,
Recently I noticed that Xilinx FPGA has RocketPHY 10Gbps serial interfaces using 64B66B encoding. However, it seems to have no FEC built in the hardware. Is this a problem? At 10Gbps, the channel won't be clean. There has to be some FEC one way or the other.
Can we really let go FEC at 10Gbps (e.g. relying on DFE) ? Or perhaps user needs to build their own FEC in the FPGA to use it along? Anyone had experience on this?
In addition, any other FPGA vendor having 10Gbps serial port FPGA chips?
thanks,
-- Francis