Quartus® Prime Pro Edition Settings File Reference Manual

ID 683296
Date 10/07/2024
Public
Document Table of Contents

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