PSIP_RETIMING_BACKWARD is used to manually retime a register from a combinational cell's output to its inputs. Apply the PSIP_RETIMING_BACKWARD to the combinational cell to achieve the retiming optimization during the Physical Synthesis in Placer (PSIP) phase of the Place Design step.
- Architecture Support
-
All architectures.
- Applicable Objects
-
Cells (
get_cells). - Values
-
- True (or 1): The Vivado PSIP engine performs backward retiming.
- False (or 0): The Vivado PSIP engine does not perform backward retiming.
Affected Steps
- Place Design