Method for updating a placed and routed netlist
US7634743B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2006 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Sep 20, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/327
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method for updating a circuit design. A modification to a netlist that includes original components and original spare cells is received. Original components that are not required by the modification are identified, disconnected and marked or made new spare cells. A pool of spare cells is generated and includes original and new spare cells. The netlist is updated by adding new components, and added components are mapped to spare cells selected from the pool. If mapping does not satisfy a design constraint, such as a timing constraint, then original components can be de-mapped and made spare cells, added components are mapped to spare cells resulting from de-mapping, and de-mapped components can be re-mapped to other spare cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.