| 摘要 |
<p>PURPOSE:To reduce the power consumption of an accumulator to make effective recording possible, by connecting a storage circuit or the like to the accumulator for countermeasure against power failure and storing the time of a clock in the storage circuit at intervals of a required time by a control part. CONSTITUTION:A data processing device 1 is constituted with a storage circuit 2, a clock 3, control part 4, power failure detecting circuit 5, and an accumulator 6 for countermeasure against power failure, and the control part 4 stores the time of the clock 3 in the storage circuit 2 at intervals of a prescribed time and executes essential data processings. If the power failure state is set, the power failure detecting circuit 5 detects the power failure to stop the operation of the control part 4, and said storage of the time is stopped. When the power failure is released, the control part 4 reads the time in the storage circuit 2 and stores it in a required position to prepare for the next power failure.</p> |
