Method and apparatus for software selection of protected register settings
US6904504B2 · kind B2 · utility
3Cited by
4References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2001 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Jan 24, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30101
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit includes a switch unit, an non-protected register and a set of protected control registers. The set of protected control registers stores safe data for use by another unit of the circuit. The switch unit outputs the data stored by one of the set of protected control registers as a function of the data stored by the non-protected register. The data in the non-protected register can be changed by software in response to user input, operational mode or other condition or conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.