Patent ID: 6408355
Filing Date: 2002-06-18
Classification: G06F

Abstract:
A method for releasing setting of an isochronous transaction in a bus network in which a plurality of buses are connected via a bridge including first communication means and second communication means, comprising:a first step of releasing setting of said isochronous transaction for a first bus by a resource-possessing node when a sending node or a receiving node exists on said first bus on which said resource-possessing node exists, and sending a request for releasing the setting of isochronous transaction by said resource-possessing node to said first communication means of said bridge existing on said first bus when no sending node or no receiving node exists on said first bus, said first communication means of said bridge on said first bus passing a packet to said sending node or said receiving node not existing on said first bus; a second step of sending a request for releasing the setting of said isochronous transaction to said second communication means connected to said first communication means by said first communication means which receives said request for releasing the setting of said isochronous transaction from said resource-possessing node and releasing the setting of said isochronous transaction for said first communication means when said first communication means exists on a path from said sending node to said receiving node; and a third step of releasing the setting of said isochronous transaction for a second bus, when said sending node or said receiving node exists on said second bus on which said second communication means exists, by said second communication means which receives said request for releasing the setting of said isochronous transaction, releasing the setting of said isochronous transaction for said second communication means when said second communication means exists on a path from said sending node to said receiving node and further, sending a request for releasing the setting of said isochronous transaction to said first communication means of said bridge existing on said second bus when no sending node or no receiving node exists on said second bus, wherein said first communication means of said bridge on said second bus passes a packet to said sending node or said receiving node not existing on said second bus.