| 摘要 |
PURPOSE:To minimize irregularity of response time without reducing scanning time, by synchronizing the scanning in resetting a scan pulse generation counter when a synchronization demand signal is inputted. CONSTITUTION:From a scan counter 3 the scan interruption pulse generates at a definite cycle. A CPU 2 repeats input processing, arithmetic processing and output processing each time the scan interruption signal is inputted. When the synchronization demand interruption signal generates, the interruption processing occurs on the way of arithmetic processing. During this interruption processing, the scan counter 3 is reset. When this interruption processing is completed, the original operation is continued. In this way, the operation time can be shortened without reducing the operating quantity and the irregularity in response time is thereby minimized. |
