Method wherein source arbitrates for bus using arbitration number of destination
US5241628A · kind A · utility
5Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1990 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Jan 4, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/364
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved method of supporting service requests in certain bus architectures is disclosed. According to the presently invented method, the source, instead of using its own arbitration number, uses the arbitration number of the destination when performing an interrupt or DMA request. The destination then recognizes that it has been granted bus ownership, even though it was not arbitrating for the bus originally. The destination can therefore immediately assume that a request has occurred and immediately thereafter begin its request service routine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.