Altera® Quartus® Prime Standard Edition Settings File Reference Manual

ID 683084
Date 5/08/2017
Public
Document Table of Contents

1.10.28. CLAMPING_DIODE

Turns on the Clamping Diode of a pin. The clamping diode can be turned on to limit overshoot voltage for a pin in input operation. The clamping diode is turned on by default for 3.0-V PCI/PCI-X I/O standards. The clamping diode is turned off by default for 3.3-V LVTTL/LVCMOS I/O standards. This option is ignored if it is applied to anything other than a pin or a top-level design entity.

Type

Boolean

Device Support

  • Arria II GX
  • Arria II GZ
  • Arria V
  • Cyclone V
  • HardCopy III
  • HardCopy IV
  • Stratix III
  • Stratix IV

Notes

This assignment supports Fitter wildcards.

This assignment is included in the Fitter report.

Syntax


		set_global_assignment -name CLAMPING_DIODE -entity <entity name> <value>
		set_instance_assignment -name CLAMPING_DIODE -to <to> -entity <entity name> <value>
		set_global_assignment -name CLAMPING_DIODE <value>
	

Default Value

Off

Example


		set_instance_assignment -name CLAMPING_DIODE ON -to pin