When using the JESD204B v4.0 and earlier to target Artix-7 or Virtex-7 devices with GTP or GTH transceivers, the RX termination is set to GND.
However, the latest recommendation in the GTP and GTH transceiver User Guides is to set the RX termination to 800mV.
If using the GTX transceiver the termination is already set to 800mV.
How do I change the RX termination to 800mV for Artix-7 GTP Transceivers or Virtex-7 FPGA GTH Transceivers?
To change the RX termination to 800mV for Artix-7 FPGA GTP Transceiver:
To change the RX termination to 800mV for Virtex-7 FPGA GTH Transceiver: