| 摘要 |
PROBLEM TO BE SOLVED: To properly perform restoration from an instantaneous stop of power supply, while reducing a control load in game control.SOLUTION: A user program (software) enables switching between the start and the stop of a watchdog timer with the use of a prescribed bit value in ROM reset setting. When power supply is started, determination is made whether a power supply shutdown signal is in an on-state or not before permitting access to a RAM (step S25). When a power supply shutdown signal is determined to be in an on-state (step S25;Yes), a watchdog timer is started with a shift to a standby state for repetitively performing infinite loop processing (step S26). Then, a reset operation due to the occurrence of time-out is validated. A monitor time to be measured by the watchdog timer can be set among a plurality of predetermined kinds and is set to be the settable longest time. |
