Patent ID: 6757874
Filing Date: 2004-06-29
Classification: G06F

Abstract:
A method of facilitating an unwinding operation in a physical design to enable performance of verification operations on said physical design, comprising:a) designating bond pad cells as macrocells rather than bond pad cells in said physical design, wherein said physical design includes a plurality of blocks each block including a plurality of actual ports and a block-level netlist; b) removing ports that couple to a top-level input from each block-level netlist and adding to said block-level netlist a first property to indicate said block-level netlist includes said ports that couple to said top-level input; c) removing ports that couple to a top-level output from each block-level netlist and adding to said block-level netlist a second property to indicate said block-level netlist includes said ports that couple to said top-level output; d) generating said physical design, and e) performing said unwinding operation using said first and second properties.