Altera Quartus II Settings File - Manual (Page 46)

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
This setting can be used in projects targeting any Altera device family.
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
46 AUTO_GLOBAL_CLOCK_MAX
MNL-Q21005
2015.05.04
Altera Corporation Quartus Settings File Reference Manual
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