System and method for arbitrating access to a shared resource
US7174406B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2003 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Aug 21, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1663
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for arbitrating access to a shared resource includes a plurality of microprocessors, a shared resource; and a controller coupled to the plurality of microprocessors and the shared resource by a first bus and a second bus, respectively, the controller including a register having a lock portion associated with each of the plurality of processors and at least one status portion, each of the lock portions indicating whether the associated one of the plurality of microprocessors has obtained access to communicate with the shared resource and each of the at least one status portion includes a bit indicating whether any of the plurality of microprocessors has obtained access to communicate with the shared resource.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.