Programmable array I/O-routing resource
US5671432A · kind A · utility
90Cited by
28References
38Claims
0Family size
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Inventors
Key dates
| Filing date | Jun 2, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/17704
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A programmable array having programmable logic cells, a programmable interconnect network and a programmable I/O system. Two I/O interfaces are provided for respective logic cells about the perimeter of the array. The I/O interfaces comprise input, output and enable paths. Each of these paths has an associated multiplexer. An I/O routing network is positioned about the perimeter of the array. Conductors connecting the I/O interface multiplexers to the programmable interconnect network also intersect, and can be programmably connected to, buses of the I/O routing network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.