Quartus II Settings File Reference Manual - Altera

Chapter 4: Analysis & Synthesis Assignments 4–111
MAX_AUTO_GLOBAL_REGISTER_CONTROLS
MAX_AUTO_GLOBAL_REGISTER_CONTROLS
Type
Allows the Compiler to choose the signals that feed the most control signal inputs to
flipflops (excluding clock signals) as global signals that are made available
throughout the device on the global routing paths. Depending on the target device
family, these control signals can include asynchronous clear and load, synchronous
clear and load, clock enable, and preset signals. This option is ignored if it is assigned
to anything other than a design entity. If you want to prevent the Compiler from
automatically selecting a particular signal as global register control signal, set the
Global Signal option to Off on that signal.
This option can be used as a project-wide option, or assigned to a design entity.
This option is turned on by default.
Boolean
Device Support
This setting can be used in projects targeting the following device families:
■ MAX3000A
■ MAX7000A
■ MAX7000AE
■ MAX7000B
■ MAX7000S
Syntax
set_global_assignment -name MAX_AUTO_GLOBAL_REGISTER_CONTROLS
set_global_assignment -name MAX_AUTO_GLOBAL_REGISTER_CONTROLS -entity
set_instance_assignment -name MAX_AUTO_GLOBAL_REGISTER_CONTROLS -to -
entity
Example
set_global_assignment -name max_auto_global_register_controls off
set_instance_assignment -name max_auto_global_register_controls off -to
foo
Default Value
On
Old Names
This variable also has the following name(s) in some earlier versions of the Quartus II
software:
June 2012 Altera Corporation Quartus Settings File
Reference Manual