Collation of interrupt control devices
US6253304A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Jan 4, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4812
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A first and a second local interrupt controller are disposed on a single integrated circuit. The first and second local interrupt controllers are coupled to controllably provide at least one interrupt request signal, respectively, to a first and second processor. An input/output (I/O) interrupt controller is also on the integrated circuit and coupled to receive an interrupt request from at least one input/output device. A communication circuit on the integrated circuit is coupled to the input/output interrupt controller and the first and second local interrupt controllers. The communication circuit provides for transfer of interrupt information between the first local interrupt controller, the second local interrupt controller and the input/output interrupt controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.