Providing multiple selectable configuration sources for programmable integrated circuits with fail safe mechanism
US8296557B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2009 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Nov 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/17768
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Within a system comprising a programmable integrated circuit (IC), a method can include storing a first configuration within the system in a read-only memory that is independent of the programmable IC. The programmable IC, being loaded with the first configuration, comprises a circuit that accesses a data source external to the system over a communication link. A second configuration can be downloaded by the programmable IC from the data source. The second configuration can be stored within a random access memory within the system that is independent of the programmable IC. Responsive to a reconfiguration event, the programmable IC can be loaded with the second configuration from the random access memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.