Visible to Intel only — GUID: opn1489537878436
Ixiasoft
Visible to Intel only — GUID: opn1489537878436
Ixiasoft
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