Clock configuration
US8341451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2009 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Mar 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4401
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit and method for determining the frequency of a first oscillating reference signal generated by a first reference oscillator. The circuit comprises: a second reference oscillator arranged to generate a second oscillating reference signal having a known frequency, a boot memory storing boot code comprising clock configuration code, and a processor coupled to the boot memory and the second reference oscillator. The processor is arranged to execute the boot code from the boot memory upon booting, wherein when executed the clock configuration code operates the processor to determine the frequency of the first reference signal by reference to the second reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.