Abnormal watching device and method for microcomputer

Details Abnormal watching device and method for microcomputer Abnormal watching device and method for microcomputer

1988-09-22

1990-10-09

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Plural, automatically sequential tests

371 163, G06F 1130

Patent

active

049623524

ABSTRACT:
An abnormal watching method for a microcomputer including a flow watching step for determining whether the flow of the microcomputer is normal or not, sending a normal signal when it is determined that the flow of the microcomputer is normal, and reading an internal register of the microcomputer, comparing the value of the internal register with an initial value of the internal register, and suspending the sending of the normal signal when the value of the internal register is not equal to the initial value, and an abnormal watching device for a microcomputer using this method.

REFERENCES:
patent: 4541050 (1985-09-01), Honda et al.
patent: 4698589 (1987-10-01), Blankenship et al.
patent: 4803682 (1989-02-01), Hara et al.
patent: 4817091 (1989-03-01), Katzman et al.
Watch Dog Timer Interface, IBM Technical Disclosure Bulletin, vol. 30, No. 11, 4/88.

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