Warning (12283): Assignment INPUT_TERMINATION on transceiver refclk clk buf/pin is not supported

Description

In Arria® V, Cyclone® V and Stratix® V devices the INPUT_TERMINATION assignment cannot be used on transceiver pins.

Resolution

Change the INPUT_TERMINATION of pin <pcie_refclk_name> to \'Transceiver Dedicated Refclk Pin Termination\' and select the appropriate Quartus® Settings File(QSF) assignments.
Refer to the Altera Transceiver PHY IP Core User Guide for more information on how to use these assignments. 

As an example, the .qsf file will appears as below if the option DC_COUPLING_INTERNAL_100_OHM is used:

set_instance_assignment -name XCVR_REFCLK_PIN_TERMINATION DC_COUPLING_EXTERNAL_100_OHMS -to <pcie_refclk_name>

Related Articles

• Warning 12283 – Assignment INPUT_TERMINATION on transceiver refclk clk buf/pin pcie_ref_clk is not supported