Programmable logic and routing blocks with dedicated lines
US7176717B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2005 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Jan 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/17728
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A programmable logic structure is disclosed that has a set of dedicated lines which extend internally throughout different dedicated logic cells within a logic and routing block (LRB), extend from a previous logic routing block to the present logic and routing block, or extend from the present logic and routing block to the next logic and routing block. One set of dedicated lines from a first logic and routing block can be stitched to another set of dedicated lines of a second logic and routing block for extending the reach as well as bypassing a logic and routing block, or bypassing a dedicated logic cell in the same logic and routing block. The dedicated lines between logic and routing blocks allow a logic and routing block to receive more inputs from its own switch box or to drive more outputs than provided by the logic and routing block as specified by a given function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.