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Method and system to manage resource requests utilizing link-list queues within an arbiter associated with an interconnect device

  • US 7,237,016 B1
  • Filed: 09/07/2001
  • Issued: 06/26/2007
  • Est. Priority Date: 09/07/2001
  • Status: Active Grant
First Claim
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1. A method to manage a-resource requests within an arbiter associated with an interconnect device, the method including:

  • identifying first and second resources required to issue a grant responsive to a resource request, the first and second resources being of a first resource type and a second resource type, respectively;

    placing the resource request within a first resource type queue when the first resource is unavailable;

    placing the resource request within a second resource type queue when the first resource is available and the second resource is unavailable;

    implementing a first selection scheme to select a resource request for processing from the first resource type queue based on availability of the first resource type, andimplementing a second selection scheme to select a resource request for processing from the second resource type queue based on availability of the second resource type;

    implementing a priority scheme between the first and second selection schemes to prioritize processing of the selected resource requests; and

    issuing the grant upon availability of both the first and second resources.

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