| 摘要 |
PURPOSE:To simplify the software processing to an interrupting processing and to reduce a processing execution time, by providing interruption request cause status information in addition to information specific to an input and output device as the notice of interruption information. CONSTITUTION:At the reception of an interruption OK signal from a central controller, an input and output device IOi provides input/output device specific information IOA of itself + interruption cause information as interruption information and transfers the signal to the central controller. The status being a cause to interruption is already reported at the request of interruption and an address to be jumped is branched based on the information, then the command start such as reading of interruption status information in an interruption processing program at the central controller and its analysis are not required. |
