Automatic clock switching
US6194940A · kind A · utility
19Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Sep 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30083
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A clock switch controller has a clock status register which stores current clock data which identifies which of two or more clock signal sources is a current clock signal source currently in use as a system clock signal source. State machine logic of the controller automatically switches, in response to a clock switch signal, the system clock signal source from the current clock signal source to a new clock signal source of the two or more clock signal sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.