How do I disable the transceiver On-Chip-Termination (OCT) of the Stratix IV GT, 10GBase-R PHY IP? - How do I disable the transceiver On-Chip-Termination (OCT) of the Stratix IV GT, 10GBase-R PHY IP? Description You can disable the transceiver On-Chip-Termination (OCT) of the Stratix® IV GT, 10GBase-R PHY IP by following the steps below. Open the MegaWizard generated siv_xcvr_low_latency_phy_nr.sv file. Search for the tx_use_external_termination" and "rx_use_external_termination" parameters and change the setting from FALSE to TRUE. Recompile your Quartus® II project and verify the transceiver pin termination in the fitter report. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 12.1.1 ['Stratix® IV GT FPGA'] ['novalue'] ['novalue'] ['novalue']