| 摘要 |
PURPOSE: A method for managing an IPC(Inter Processor Communication) state between processors is provided to accurately judge whether an IPC is a normal state, a delay state, or an abnormal state using a corresponding stamp by including the time stamp in an IPC signal between an SSC(System Status Control) and an MPSH(Main Processor Status Handler). CONSTITUTION: An SSC judges whether a status response signal including a request time and a response time is received from an MPSH within a certain time(S23). If the status response signal is generated from the corresponding MPSH, the SSC retransmits a request signal to status information of a main processor in which the status response signal is not generated to the MPSH(S24). The SSC stores a request time for storing a current time transmitted from the SSC and a response time for confirming the current time of the SSC are stored in the MPSH in which the status response signal is not generated(S25). The SSC judges whether a status response signal including the request time and the response time is generated from the MPSH within a certain time(S26). If the status response signal is not generated from the MPSH within the certain time, the SSC judges a corresponding main processor as an abnormal state(S27). If the status response signal is generated from the corresponding MPSH, the SSC analyzes the corresponding status response signal(S28). The SSC judges whether the current of the SSC is more than the request time(S29). If the corresponding current time is less than the request time, the SSC judges that an IPC between main processors is a normal sate, stores status information and status change items of the main processor in a database, and notifies corresponding items to an operator(S30). If the current time is more than the request time, the SSC judges that the IPC is an IPC delay state and an IPC stop state and notifies the corresponding items to the operator(S31).
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