| 摘要 |
<p>PURPOSE:To save the trouble of resetting time data, which is conventionally required by using data as it is if data which is not a hindrance in an execution is stored in RAM for clock when there is a spark and the instantaneous interruption of a power source. CONSTITUTION:When a micro computer 1 resumes an operation after there is the instantaneous interruption of the power source, RAM for system control is cleared and is initialized. RAM for clock is not cleared on the other hand, and a counting operation is started from a value which is set in RAM for clock. Then, displayed time data is flickered and that a reset program is started is informed to a user. Then, it is decided whether data stored in RAM for clock can be existed as time data or not. When it is decided that it cannot be existed, RAM for clock is cleared or time data on a value which the nearest to data and which can actually exist is set in RAM.</p> |
