Altera® Quartus® Prime Standard Edition Settings File Reference Manual

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

1.2.16. AUTO_GLOBAL_CLOCK_MAX

Allows the Compiler to choose the signal that feeds the most clock inputs to flipflops as a global clock signal that is made available throughout the device on the global routing paths. If you want to prevent the Compiler from automatically selecting a particular signal as global clock, set the Global Signal option to 'Off' on that signal.

Old Name

Auto Global Clock -- MAX 7000B/7000AE/3000A/7000S/7000A

Type

Boolean

Device Support

  • MAX3000A
  • MAX7000A
  • MAX7000AE
  • MAX7000B
  • MAX7000S

Notes

This assignment supports synthesis wildcards.

Syntax


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

Default Value

On

Example


		set_global_assignment -name auto_global_clock_max off
		set_instance_assignment -name auto_global_clock_max off -to foo