Apparatus for detecting presence or absence of oscillation...

Details Apparatus for detecting presence or absence of oscillation... Apparatus for detecting presence or absence of oscillation...

2011-06-24

2011-12-20

Cox, Cassandra (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By presence or absence pulse detection

C327S020000

Reexamination Certificate

active

08081014

ABSTRACT:
A semiconductor apparatus includes an arithmetic circuit that executes a program based on an operating clock signal input through a clock transfer node, an internal oscillator that generates an internal clock signal to be used internally, a watch dog timer that counts the internal clock signal, detect that a count value reaches a predetermined value of an execution time of the program in the arithmetic circuit and output a notification signal, and a clock monitor circuit that detects presence or absence of the operating clock signal in response to the notification signal.

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