| 摘要 |
An appropriate recovery process is made possible according to the situation of a power supply anomaly. When a system reset occurs, a storage unit 102 stores an operation state of a system immediately before the reset in an operation state memory 1 and also stores a recovery mode determined according to the stored operation state in a recovery mode memory 2 . At the beginning of the recovery process, a necessary process is performed according to the stored recovery mode. Each time the recovery process is performed, a recovery counter 5 performs enumeration and a normal-operation-time timer counter 6 enumerates a normal operation time of the system. Such processes as a system halt and an engine recovery are performed according to the enumerated value and the normal operation time enumerated by the counters.
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