Multiprocessor system with high-speed exclusive control
US7409506B2 · kind B2 · utility
16Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2005 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Dec 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/526
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multiprocessor system includes a plurality of processors, a shared bus coupled to the plurality of processors, a resource coupled to the shared bus and shared by the plurality of processors, and an exclusive control unit coupled to the plurality of processors and configured to include a lock flag indicative of a locked/unlocked state regarding exclusive use of the resource, wherein the processors include a special purpose register interface coupled to the exclusive control unit, and are configured to access the lock flag by special purpose register access through the special purpose register interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.