Visible to Intel only — GUID: QSF-TOGGLE_SPEED
Ixiasoft
Visible to Intel only — GUID: QSF-TOGGLE_SPEED
Ixiasoft
TOGGLE_SPEED
Quartus uses conservative rules for allowed pin locations to minimize pin-to-pin interference. If the current placement limitations of the I/O pins in the Quartus IP are too restrictive, yet the I/Os are toggling at a rate that is below the threshold for interference, then this QSF assignment may be used to communicate that the toggle speed of that pin is sufficiently slow. Refer to the data sheets and IP documentation to determine whether the frequency matches the required spec to disallow I/O placement restrictions for the given pin.
Type
Enumeration
Values
- TOGGLE_SPEED_FAST
- TOGGLE_SPEED_SLOW
Device Support
- Intel Agilex® 5
- Intel Agilex® 7
- Arria® 10
- Cyclone® 10 GX
- Stratix® 10
Notes
This assignment supports Fitter wildcards.
This assignment is included in the Fitter report.
Syntax
set_global_assignment -name TOGGLE_SPEED -entity <entity name> <value> set_instance_assignment -name TOGGLE_SPEED -to <to> -entity <entity name> <value> set_global_assignment -name TOGGLE_SPEED <value>
Default Value
TOGGLE_SPEED_FAST
Example
set_instance_assignment -name TOGGLE_SPEED TOGGLE_SPEED_SLOW -to pin
See Also
IO_STANDARD