Quartus® Prime Pro Edition Settings File Reference Manual

ID 683296
Date 7/08/2024
Public
Document Table of Contents

IO_MAXIMUM_TOGGLE_RATE

Specifies the toggle rate of this node. You can specify the desired frequency setting. This option is ignored if it is applied to anything other than pins. This option can be used to direct the Fitter in its toggle-rate checking while allowing a single-ended pin to be placed closer to a differential pin. This assignment is used to analyze signal integrity under worst case conditions (highest possible toggle rate). A different assignment, Power Toggle Rate, is used to specify the expected time-averaged toggle rate rather than worst-case toggle rate, and is used by the Power Analyzer to estimate time-averaged power consumption. Use the Synchronizer Toggle Rate if you want to configure the data rates used for Metastability Reporting in the Timing Analyzer.

Old Name

TOGGLE RATE, TOGGLE_RATE

Type

Frequency

Device Support

  • Intel Agilex® 5
  • Intel Agilex® 7
  • Arria® 10
  • Cyclone® 10 GX
  • Stratix® 10

Notes

This assignment supports Fitter wildcards.

Syntax

set_instance_assignment -name IO_MAXIMUM_TOGGLE_RATE -to <to> -entity <entity name> <value>