Logic region resources for programmable logic devices
US5999015A · kind A · utility
109Cited by
35References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Jul 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/48
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A programmable logic device has subregions of programmable logic grouped together in logic regions. The subregions in each region share several control signals, which can be selected either from relatively global conductors on the device or from data inputs to the region. The control signals allow synchronous or asynchronous clearing of a register in each subregion. The control signals also allow synchronous loading of the register in each subregion, and the data loaded can be either one of the data inputs to the subregion (so-called lonely register operation) or a signal produced by the logic of the subregion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.