Adaptive voltage scaling clock generator for use in a digital processing component and method of operating the same
US6944780B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2002 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Aug 25, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is disclosed clock control circuitry for selectively applying a clock signal to a digital processing component wherein the clock signal is capable of being changed to a plurality of operating frequencies. The clock control circuitry is operable to (i) receive a command to change a first operating frequency to a second operating frequency, (ii) in response to the command, disable the applied clock signal, (iii) generate a test clock signal having the second operating frequency, (iv) apply the test clock signal to a power supply adjustment circuit, and (v) sense a status signal from the power supply adjustment circuit. The status signal indicates that a power supply level of the digital processing component has been adjusted to an optimum value suitable for the second operating frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.