Systems and methods for clock mode determination utilizing explicit formulae and lookup tables
US7057539B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2005 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | May 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R23/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for determining a data converter operating mode includes measurement circuitry operable to measure a master clock frequency of a master clock signal and measure a frequency ratio between a data clock frequency of a data clock signal and the master clock frequency. A mapping system maps the measurements of the master clock frequency and the frequency ratio to an operating mode of the data converter utilizing an explicit formula. In a further embodiment, the mapping system maps the measurements of the master clock frequency and the frequency ratio to an operating mode of the data converter utilizing a lookup table. In an additional embodiment, the mapping system tests an available set of operating modes, independent of any previous tests, to determine a suitable operating mode for the data converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.