Automatic bus routing
US8060849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2008 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Jan 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/398
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Particular embodiments generally relate to automatic routing of a bus in an integrated circuit design. In one embodiment, a method includes receiving a description of a circuit design. Buses are automatically detected based on pin adjacency in terms of distance between pins and routing layer of the pins. A bus routing area is determined by the bounding box of first group of source pins and a second group of destination pins. Bus routing guidance is then generated by an automatically search engine in the bus routing area. The bus routing guidance models a bus as a skinny wire with large spacing, and it does not violate design rules. Real bus wires are generated based on the bus guidance. A bus is then automatically routed between a first group of source pins and a second group of destination pins based on the bus routing guidance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.