| 摘要 |
PURPOSE:To enhance safety by informing an abnormality when a load driving signal from a microcomputer is undesired and an equipment driving circuit is brought into trouble. CONSTITUTION:The load driving signal R of a high level is undesirably outputted from the output port OUT of the microcomputer 8 according to an external, noise or the like, or the driving circuit 7 is brought into the trouble, an L level signal is inputted to an input port IN. Accordingly, when the load driving signal R of an H level is not outputted from the output port OUT, the L level signal is undesirably inputted to the input port IN. Thereby, the microcomputer 8 drives an informing means 10 and informs the abnormal state of an electronic range or the like to an operator. |
