Device for stopping the running of programs being executed in a

Details Device for stopping the running of programs being executed in a Device for stopping the running of programs being executed in a

1985-06-11

1987-06-09

Popek, Joseph A.

Static information storage and retrieval

Powering

Data preservation

365226, G11C 1140

Patent

active

046725857

ABSTRACT:
A device for stopping the running of programs being executed in a microprocessor prior to the disappearance of the power supply voltage of the microprocessor comprising a differentiator circuit shunted across the power supply line VA of a microprocessor for inhibiting the access circuit to the internal RAM in the microprocessor and for reinitializing the internal circuits of the microprocessor as soon as the power supply voltage level VA begins to decrease from a predetermined decrease threshold.

REFERENCES:
patent: 3562555 (1971-02-01), Ahrons
patent: 4234920 (1980-11-01), Van Ness et al.
patent: 4534018 (1985-08-01), Eckert et al.
Electronics, vol. 50, No. 15, 21 Jul. 1977, p. 104; I. P. Breikss: "Nonmaskable interrupt saves processor register contents".

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