Patent ID: 6202097
Filing Date: 2001-03-13
Classification: G06F

Abstract:
In a multiprocessor system having a plurality of nodes each of which includes a data processor and other circuitry coupled to the data processor through data processor signal lines, a method for communicating diagnostic-related information between a master and the plurality of nodes, comprising the steps of:transmitting a packet of diagnostic-related information in a bit serial format from the master to a first one of the nodes;receiving the packet with the first node;determining if the packet is intended for the first node; and if sostoring the packet within the first node;transmitting the packet from the first node to a next node; andwhile the step of transmitting is occurring, and if the packet was determined to be intended for the first node, performing in the first node an operation specified by the packet, wherein at least one received packet causes a portion of the other circuitry to assume control of at least some of the data processor signal lines for executing a function specified by the packet.