Intel® Quartus® Prime Pro Edition Settings File Reference Manual

ID 683296
Date 4/04/2022
Public

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LVDS_DIRECT_LOOPBACK_MODE

Enable the LVDS Direct Loop Mode on a True Differential output pin. This assignment should only apply from an input pin to an output pin and both of them should have True Differential I/O standard. When this feature is enabled, data coming in from the adjacent RX pair gets looped back to the TX pair. This feature can be used to verify the Tx and Rx buffer by checking the data transmit and received. This option is ignored if it is applied to anything other than a pin or a top-level design entity.

Type

Boolean

Device Support

  • Intel® Agilex™
  • Intel® Arria® 10
  • Intel® Cyclone® 10 GX
  • Intel® Stratix® 10

Notes

This assignment supports Fitter wildcards.

This assignment is included in the Fitter report.

Syntax


set_instance_assignment -name LVDS_DIRECT_LOOPBACK_MODE -from <from> -to <to> -entity <entity name> <value>

Example


set_instance_assignment -name LVDS_DIRECT_LOOPBACK_MODE ON -from true_diff_in_pin_p -to true_diff_out_pin_p

See Also

IO_STANDARD