| 摘要 |
PURPOSE:To perform arithmetic processing at a high speed and with high reliability, by enabling each microprocessor to obtain information on another microprocessor from its own receiving memory. CONSTITUTION:In a system consisting of microprocessor units MPU each provided with a transmitting memory and a receiving memory on a bus and a communication controller connected to respective transmitting and receiving memories, the contents of the transmitting memory of each microprocessor are all cleared and then while information is written in only specific addresses of the transmitting memory from its own microprocessor, writing in other addresses by another microprocessor is inhibited; and the communication controller reading and ANDs the contents of the same addresses of the transmitting memories of all MPUs to write the result in the same address of the receiving memories of all MPUs, and executes them successively to writing the contents, written in the transmitting memories of the respective MPUs, in respective receiving memories. Therefore, the MPUs are operated simultaneously. |
