Electrical computers and digital data processing systems: input/ – Access arbitrating – Access prioritizing
Reexamination Certificate
2005-05-10
2005-05-10
Rinehart, Mark H. (Department: 2111)
Electrical computers and digital data processing systems: input/
Access arbitrating
Access prioritizing
C710S107000, C710S241000, C710S039000, C710S309000, C710S310000, C710S041000, C710S113000
Reexamination Certificate
active
06892259
ABSTRACT:
A target device in a computer bus system allocates resources by selecting a priority requester for allocation of scarce resources. In a non-bus arbiter configuration, the first initiator device to receive a retry response to a transaction request after the resources are exhausted is designated as a priority requester. In a bus arbiter configuration, the priority requester is chosen on a round-robin basis from initiator devices that received a retry response to the initiator's most recent transaction request. If only one resource is available when an initiator sends a transaction request, the initiator receives a retry response unless the initiator is the priority requester.
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Goodrum Alan L.
Riley Dwight D.
Hewlett--Packard Development Company, L.P.
Mason Donna K.
Rinehart Mark H.
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