Single event upset mitigation
US8922242B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2014 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Feb 20, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/17768
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods and circuits are disclosed for backing up the value of a bi-stable circuit included in a set of programmable logic circuits of a programmable IC. The programmable logic circuits are configured to implement logic circuits having functions based on data values stored in a used portion of a plurality of configuration memory cells. The programmable IC includes a backup control circuit configured to back up and restore the value of the bi-stable circuit. In response to a first signal, a first data value stored by the bi-stable circuit is retrieved and stored in a first one of the plurality of configuration memory cells that is unused in implementing the logic circuits. In response to a second signal, the first data value is retrieved from the first one of the plurality of configuration memory cells and stored in the bi-stable circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.