Reset circuit of electronic device

Details Reset circuit of electronic device Reset circuit of electronic device

1995-04-11

1996-11-19

Wambach, Margaret Rose

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327198, H03K 302

Patent

active

055766501

ABSTRACT:
A processor outputs a state signal representing the process state toga reset circuit. Upon reception of a reset signal from an external reset switch, the reset circuit outputs the reset signal to the reset terminal of the processor under the condition that the state signal allows a reset operation. The reset circuit also has a counter for starting a count operation upon reception of an externally input reset signal. Even when the processor is in a runaway state and cannot output the state signal for allowing the reset operation, a forced reset signal is supplied to the processor after a predetermined time is counted by the counter.

REFERENCES:
patent: 4087643 (1978-05-01), Joslow et al.
patent: 4091455 (1978-05-01), Woods et al.
patent: 4313158 (1982-01-01), Porter et al.
patent: 5203000 (1993-04-01), Folkes et al.
patent: 5345583 (1994-09-01), Davis
patent: 5438279 (1995-08-01), Masumoto

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