IMPLEMENTING INTEGRATED CIRCUIT DESIGNS USING DEPOPULATION AND REPOPULATION OPERATIONS

摘要

Circuit design computing equipment may perform depopulation operations, constraint generation, and repopulation operations in a circuit design in anticipation of register retiming operations. A depopulation operation before placement and/or before routing operations may prevent the respective placement and/or routing operations from placing and/or routing registers from the circuit design. Constraint generation may create constraints for placement and/or routing operations that allow for the reinsertion of registers after routing operations. Repopulation operations may reinsert registers in the circuit design after routing operations according to the constraints. If desired, the circuit design computing equipment may perform register retiming operations to further improve the performance of the circuit design.

主权项

1. A method for operating circuit design computing equipment, comprising:
with the circuit design computing equipment, receiving a circuit design description that includes a register coupled between first and second circuit design elements; with the circuit design computing equipment, performing a depopulation operation that prevents a routing operation from connecting the register to the first and second circuit design elements; and with the circuit design computing equipment, performing the routing operation that connects the first circuit design element to the second circuit design element without passing through the register.