Reset circuit of electronic device
US5576650A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1995 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Apr 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processor outputs a state signal representing the process state toga reset circuit. Upon reception of a reset signal from an external reset switch, the reset circuit outputs the reset signal to the reset terminal of the processor under the condition that the state signal allows a reset operation. The reset circuit also has a counter for starting a count operation upon reception of an externally input reset signal. Even when the processor is in a runaway state and cannot output the state signal for allowing the reset operation, a forced reset signal is supplied to the processor after a predetermined time is counted by the counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.