Microcomputer with abnormality sensing function

Details Microcomputer with abnormality sensing function Microcomputer with abnormality sensing function

1986-12-23

1988-10-04

Heckler, Thomas M.

Boots, shoes, and leggings

371 62, G06F 1134

Patent

active

047759577

ABSTRACT:
A microcomputer includes an interrupt signal generator for supplying a CPU with an interrupt signal at predetermined time intervals, and a monitoring timer reset by a reset signal generated by the CPU in response to the interrupt signal. An abnormality is sensed on the basis of expiration of time in the monitoring timer. A flag for resetting the monitoring timer during a first processing started by the interrupt signal is stored in a memory device connected to the CPU, and the CPU generates the reset signal in response to the stored flag during a second processing having a priority lower than that of the first processing.

REFERENCES:
patent: 4072852 (1978-02-01), Hogan et al.
patent: 4162526 (1979-07-01), Gass et al.
patent: 4538273 (1985-08-01), Lasser
patent: 4586180 (1986-04-01), Anders et al.
patent: 4598355 (1986-07-01), Shepler et al.
patent: 4618953 (1986-10-01), Daniels et al.
patent: 4627060 (1986-12-01), Huang et al.

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