Spurious interrupt monitor
US5138709A · kind A · utility
25Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1990 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Apr 11, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0751
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a microprocessor system including arbitration for an interrupt, an apparatus and method for monitoring the arbitration lines to determine whether an interrupt request is real or spurious is includued. Once an interrupt acknowledge signal is provided, the interrupting apparatus must arbitrate for the interrupt slot. If no arbitration occurs the interrupt request was spurious and bus error is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.