| 摘要 |
PURPOSE:To optionally change the priority of the interruption factors with change of the setting system by selecting an interruption factor having the highest priority via a selection means based on the setting operation of a setting means. CONSTITUTION:An interrupting action is started when an interruption request signal IRQ is outputted from an interruption request circuit 7. A preference deciding part 2b selects and delivers an interruption factor set at an interruption factor register 10 based on the priority set previously at a preference setting part 1b. An interruption processing part 12b reads said interruption factor and carries out a necessary interruption process. In such a constitution, the priority can be optionally set in response to the system constitution when the part 1b sets the necessary data. Furthermore the priority can be dynamically changed in accordance with the processing situation. |
