Shared memory arbitration apparatus and method
US6014729A · kind A · utility
70Cited by
13References
1Claims
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Key dates
| Filing date | Sep 29, 1997 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Sep 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1605
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for arbitrating requests for access to a shared resource. A buffer, on command from control logic, can selectively couple or decouple two buses. The control logic uses signals from two logic devices, one of which may be a microprocessor, and one of which may be a communications interface, to determine which of the devices is granted access to the shared resource. The control logic can generate an inhibit signal to the microprocessor to stall it while the second logic device is accessing the shared resource. Handshaking is used to control access by the second device to the shared resource.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.