Debug circuit for the processor unit, processor unit and debugging system

摘要

PROBLEM TO BE SOLVED: To provide an efficient debug environment.;SOLUTION: A control unit 12 of a processor device 1-2 generates and transmits a break notice signal to a communication unit 11 of the own processor device on detecting a core processor 13 of the own processor device breaking execution of a program. When the communication unit 11 of the processor device 1-2 receives a status request command from a processor device 1-1 and the break notice signal from the control unit 12 of the processor device 1-2, the communication unit 11 transmits a break and status request command for breaking execution of a program by the core processor 13 to a processor device 1-3 instead of the received status request command. Further, on receiving the break and status request command from a previous processor device, each of communication units 11 of processor devices 1-1 to 1-N controls a control unit 12 of the own processor device to break execution of a program by a core processor 13 of the own processor device.;COPYRIGHT: (C)2012,JPO&INPIT