| 摘要 |
PURPOSE:To shorten the time when a microprocessor is occupied for diagnosis by setting a signal line containing a buffer memory between the microprocessor and a diagnostic control processor in addition to an inter-processor data bus. CONSTITUTION:A signal line containing a buffer memory 1 is set between a microprocessor 22 and a diagnostic control processor 21 in addition to an inter-processor data bus 23. The information on a control memory part 24 is once transferred to the memory 1 and then to the processor 21. In this case, the information can be transferred to the memory 1 in an extremely short time compared with the transfer of information carried out via the microprocessor 22 and the bus 23. As a result, the time when the processor 22 is occupied by the processor 21 is shortened and the working of the processor 22 is never stopped. Thus an original process is smoothly carried out. |
