Mask-based round robin arbitration

Details Mask-based round robin arbitration Mask-based round robin arbitration

2006-05-30

2006-05-30

Chin, Wellington (Department: 2664)

Multiplex communications

Channel assignment techniques

Arbitration for access to a channel

C370S444000, C370S447000, C370S461000, C340S870030, C710S309000

Reexamination Certificate

active

07054330

ABSTRACT:
A method and system to arbitrate between a plurality of resource requests are disclosed. In each arbitration within a current round of arbitration, a winning request is identified based on a priority associated with each requester participating in the arbitration and a set of values stored in a mask register. In response to identifying the winning request, a mask register value corresponding to a requestor of the winning request is updated to disqualify this requestor from further participation in the current round of arbitration. When the current round of arbitration completes, the set of values in the mask register is reset to allow each requestor to participate in the next round of arbitration. The current round of arbitration begins when each requester is qualified to participate in the current round of arbitration and completes when every participating requestor has been disqualified.

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