System and method for resetting a microprocessor system
US5297287A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Mar 2, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a reset circuit with two different threshold input voltages. The reset circuit of the present invention is located within a processor, and is designed to control the reset functions of both the processor and the chips located peripheral to the processor. The reset circuit includes a first buffer with a first threshold voltage level. The input of the first buffer is connected to a reset signal and the output of the first buffer is connected to control the reset function of at least one chip that is peripheral to the processor. A second buffer is provided with a second threshold voltage level that is higher than the first threshold voltage level. The input of the second buffer is connected to the reset signal and the output of the second buffer is connected to control the reset function of the processor. The reset circuit guarantees that the processor is reset after the peripheral chips subsequent to power up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.