Chip processors with integrated I/O
US7389392B2 · kind B2 · utility
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1References
6Claims
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Key dates
| Filing date | Oct 29, 2005 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Dec 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A solution to the read-modify-write problem for mixed tri-state chip processors by implementing a simple hardware change. This change could easily be built into microcontrollers and other chip processors to once and for all solve the problem. The present invention uses at least one logic gate to route data from the output of the data register back to itself instead of from the input pin during reads; the correct value stays in the output register at all times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.