| 摘要 |
PURPOSE:To attain the priority control of an interruption as well as the high- speed discrimination of an interruption source device and to improve the data processing efficiency, by providing a comparator and a signal circuit for display of interruption source device to each channel device. CONSTITUTION:In case channel devices CHU#0-#2 produce interruption factors, a signal circuit 41 for display of interruption source sets in interruption source display signal 47 at H and displays #2 for the device CHU#2. At the same time, the information is given to the device CHU#1 together with the code of the interruption factor level displayed on the interruption request signal line 44. Then the CHU#1 compares the interruption factor level transferred from the CHU#2 with the interruption factor level of the CHU#1 through a comparator 34. The comparator 34 controls a signal circuit 40 for display of interruption source according to the result of comparison and delivers a display signal #2 or #1 to an interruption source display signa line 46 to transfer it to the CHU#0. An interruption request can be discriminated at a high speed with such said control of interruption. This improves the data processing efficiency. |
