| 摘要 |
<p>PURPOSE:To reduce time difference between respective timers by parallelly performing the time setting of a timer for time control, built-in timer, and timer for time display. CONSTITUTION:A built-in timer time setting means 11 of a central processing unit 1 sets time to a built-in timer 6, a system time setting request means 12 requests to set the system time to a time controller 4, and a timer time setting means 3 for display of an input/output controller 3 sets time to a timer 7 for time display. A built-in timer time setting request means 43 requests the time setting to the built-in timer 8, and a timer time setting request means 44 for display requests the time setting to the timer 7 for time display to the input/ output controller 3. A system time setting end notification means 45 notifies the end of system time setting processing. Thus, the time setting of each timer can be parallelly performed and the time difference between respective timers can be reduced.</p> |
