| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system between processors capable of realizing that a processor on the other side of communication is made to perform a desired processing at desired timing without providing an additional line. SOLUTION: In the communication system by which processors 1, 2 perform data communication via a communication line L, an interruption command is provided as one of communication commands. And a processor that receives the interruption command executes an interruption processing by issuing an interruption request to the internal CPU. The processor 2 can be made to promptly detect that data is transmitted from the processor 1 and to execute a processing for reception without delay, for example, by setting the processors so that the processor 1 transfers the data to a memory 14 of the processor 2, after that, transmits the interruption command to the processor 2 on its receiving side and the processor 2 executes a processing for reading the received data from the memory 14 by the interruption processing corresponding to the interruption command when the interruption command is received. |
