Enable on-chip termination for Differential Transceiver clocks

Hi,

as far as I understand you are still searching for valid .qsf entry for transceiver clock input termination.

Valid settings are listed in this document: https://www.intel.com/content/www/us/en/docs/programmable/683296/24-3.html
As far as I see, the settings are the same for previous Quartus Pro versions.

The option for transceiver reference clock termination is XCVR_A10_REFCLK_TERM_TRISTATE

allowed values are TRISTATE_OFF and TRISTATE_ON

TRISTATE_OFF corresponds to 100 ohm differential termination.

Some confusion is caused by the fact, that Quartus Std. uses a different option name
XCVR_REFCLK_PIN_TERMINATION

values are AC_COUPLING, DC_COUPLING_EXTERNAL_RESISTOR and DC_COUPLING_INTERNAL_100_OHMS

See: https://www.intel.com/content/www/us/en/docs/programmable/683084/current/settings-file-reference-manual.html

To check which termination has been actually implemented, you can review QPP fitter report/Plan Stage/Input Pins.

Regards
Frank