On-chip detection of clock gitches by examination of consecutive data
US6543027B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2000 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Feb 9, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An application specific integrated circuit includes a clock recovery circuit which recovers from an input signal a repetitive sequence of data values wherein no two consecutive values are the same and a recovered clock. An address generator responds to the recovered clock to cause storage of the data values in said memory in a set of locations having addresses generated by the address generator, so that the address generated by the generator increments in response to a repetitive transition in the recovered clock. The existence of a clock glitch is found by reading the data values from the set of locations to determine whether any two consecutive locations contain the same data value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.