Microcomputer system
专利汇可以提供Microcomputer system专利检索，专利查询，专利分析的服务。并且PURPOSE:To secure the safety when the hardware of a system is at fault by detecting the abnormality of a watchdog circuit by a microcomputer, and outputting its fact to the outside of the system. CONSTITUTION:A watchdog timer circuit 7 is connected to a microprocessor 2 of a microcomputer 1 of a microcomputer system through an interface 5, an outputting circuit 6 and an OR gate 13. Also, the second timer circuit 10 is connected to the processor 2, and a NOR gate 14 connected to a light emitting diode 15 is connected to the circuits 6, 7 and the OR gate 13, respectively. By this processor 2, the state of a timer clock of the circuit 7 is monitored, and when an abnormality such as the processor 2 is not reset, is generated the NOR gate 14 is operated by the output of the circuit 6, and the light emitting diode 15 is made to emit a light. Also, a fault of hardware is outputted to the outside, and the safety when the system is at fault.，下面是Microcomputer system专利的具体信息内容。
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