Programmable logic device with configurable override of region-wide signals
US7579866B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2006 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Aug 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/17736
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A programmable logic device architecture providing efficient configurable functionality to allow the “tie-off” of logic region-wide control signals. This functionality is provided while maintaining the efficiency of region-wide signals, yet allows sufficient flexibility for effective use of register-packing and usage within the region. Methods are given for both sub-region and individual logic element tie-off granularity. In various embodiments, the tie-off logic may be used for logic wide signals used in PLDs having logic elements arranged in regions of logic, sometimes referred to in the industry as either Logic Array Blocks or Complex Logic Blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.