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Method and apparatus for arbitration and fairness on a full-duplex bus using dual phases

  • US 6,865,632 B1
  • Filed: 06/17/2003
  • Issued: 03/08/2005
  • Est. Priority Date: 11/05/1999
  • Status: Expired due to Term
First Claim
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1. A computer-readable medium containing instructions which, when executed by a computer, provide an arbitration fairness protocol in a full-duplex communications system having a plurality of nodes sending arbitration requests to a BOSS node, by performing the acts of:

  • providing a first arbitration phase, a second arbitration phase, and an arbitration advancing means;

    sending an arbitration reset command for the first arbitration phase by the BOSS node;

    granting arbitration by the BOSS node of arbitration requests made by the plurality of nodes for said first arbitration phase during said second arbitration phase;

    granting arbitration by the BOSS node of arbitration requests made by the plurality of nodes for said first arbitration phase during said first arbitration phase;

    advancing to said second arbitration phase according to said advancing means;

    sending an arbitration reset command for said second arbitration phase by the BOSS node;

    granting arbitration by the BOSS node of arbitration requests made by the plurality of nodes for said second arbitration phase during said first arbitration phase; and

    granting arbitration by the BOSS node of arbitration requests made by the plurality of nodes for said second arbitration phase during said second arbitration phase.

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