| 摘要 |
PURPOSE:To simplify a device, to prevent a halt of a processing, etc., and to obtain advantageous program constitution by executing simultaneously a periodic interruption with regard to all microprocessors, when transferring a data between plural microprocessors. CONSTITUTION:Each microprocessor 1, 2 and 3 usually executes a data processing, respectively, but a periodic interruption is executed by detecting a rise of an 8ms clock pulse generated from clock pulse generators 5, 6. That is to say, all microprocessors execute simultaneously a periodic interruption program for controlling a data transfer between the microprocessors. By this periodic interruption program, whether the data transfer is necessary between each other or not is decided, and when it is necessary, the processing is ended after the data transfer of a prescribed quantity. In this way, the data transfer is executed by a common 8ms period to constitute advantageously a program and improve the stability of a system. |
