| 摘要 |
PURPOSE:To attain the interruption processing of a self-diagnostic function by selecting one of diagnostic unctions by a diagnostic function selection signal given externally in the case of displaying a menu of a diagnostic function capable of applying self-diagnosis and diagnosing the signal so as to display the result. CONSTITUTION:Supposing that an important error takes place in a microprocessor, at first the microprocessor applies a conventional mask disable interruption processing. Then the interruption processing is applied, a menu of the diagnostic function is displayed to urge the operator for the selection, and the function is selected by the operator, for example, by a keyboard entry to select the diagnostic function. Based on the selection, the processing is branched to each function and then the selected processing is implemented and the result is displayed on a display device. When the result of display is erased and other diagnostic function is desired to be selected, the display end key is depressed to select other diagnostic function. |
