Multiprocessor arbitration in single processor arbitration...

Details Multiprocessor arbitration in single processor arbitration... Multiprocessor arbitration in single processor arbitration...

G - Physics

06

F

354/234

G06F 13/362 (2006.01)

Patent

CA 2029198

ABSTRACT A bus arbitration method for multiple processors that can be incorporated into an arbitration scheme that is designed to include only a single processor. The method includes consolidating the individual bus requests of each processor into a single bus request supplied to the single processor arbitration scheme. When control of the bus is allocated to the single processor, the multiprocesor arbitration arbitrates among the processors who requested the bus. The bus protocol used includes a least recently used method for granting bus access to the multiple processors coupled with a means for giving one processor priority over the others for access to the bus. The protocol also includes protection from interruption for the respective processor in control of the bus for a preset period of time.

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