Visible to Intel only — GUID: QSF-NOT_GATE_PUSH_BACK
Ixiasoft
Visible to Intel only — GUID: QSF-NOT_GATE_PUSH_BACK
Ixiasoft
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