Cpu malfunction detection system

Details Cpu malfunction detection system Cpu malfunction detection system

G - Physics

06

F

G06F 11/34 (2006.01) G06F 11/00 (2006.01) G06F 11/32 (2006.01)

Patent

CA 2074103

- 12 - ABSTRACT OF THE DISCLOSURE A system for detecting the malfunction of a CPU (Central Processing Unit) is disclosed. A watchdog timer applies an interrupt signal to the CPU on detecting the malfunction of the CPU. In response to the interrupt signal, the CPU executes interrupt processing to increment the number of times that the CPU has malfunctioned stored in a nonvolatile memory. As the number of times stored in the nonvolatile memory reaches a predetermined value, the CPU displays an alarm message on a display.

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