Quartus® Prime Pro Edition Settings File Reference Manual

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

NOT_GATE_PUSH_BACK

Allows the Compiler to push an inversion (that is, a NOT gate) back through a register and implement it on that register's data input if it is necessary to implement the design. If this option is turned on, a register may power up to an active-high state, so it may need to be explicitly cleared during initial operation of the device. This option is ignored if it is applied to anything other than an individual register or a design entity containing registers. If it is applied to an output pin that is directly fed by a register, it is automatically transferred to that register.

Type

Boolean

Device Support

  • This setting can be used in projects targeting any Intel FPGA device family.

Notes

This assignment is included in the Analysis & Synthesis report.

This assignment supports synthesis wildcards.

Syntax

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

Default Value

On

Example

set_global_assignment -name not_gate_push_back off
set_instance_assignment -name not_gate_push_back off -to reg