| 摘要 |
PURPOSE:To transfer functions of parts, where anomaly is generated, to other parts by connecting plural CPU parts and memory parts to a common bus and causing respective CPU parts and memory parts to perform the check for anomaly of themselves. CONSTITUTION:Plural CPU parts 15 and 16 which take charge of a data arithmetic function and plural memory parts 17 and 18 which take charge of a data storage function are connected to common data bus 19. These CPU parts 15 and 16 and memory parts 17 and 18 can perform the check for anomaly of themselves respectively. Then, one of plural CPU parts 15 and 16 is operated; and if this part becomes abnormal, this part transfers the arithmetic function to the next CPU part and becomes a self-closing state. Then, as regards plural memory parts 17 and 18, all normal parts are operated in parallel, and only memory parts which have detected anomaly of themselves become as self-closing state. |
