Semiconductor integrated circuit having noise detect...

Details Semiconductor integrated circuit having noise detect... Semiconductor integrated circuit having noise detect...

2005-10-20

2008-03-04

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Particular stable state circuit

C365S228000, C714S047300

Reexamination Certificate

active

07339411

ABSTRACT:
A processor or a semiconductor integrated circuit has circuit blocks performing signal processing, internal power supply nets, noise detecting circuits corresponding to each circuit block that detect noise on the power supply nets and an interruption handling circuit that prevents a malfunction in processing within a circuit block caused by noise on the power supply nets. When noise is detected, the interruption handling circuit performs an interruption by sending an interruption signal to the circuit block relating to the signal processing for preventing a malfunction to the circuit block. During the operation of a plurality of stages for executing an instruction, noise is monitored at every stage. If no noise is detected through a final stage, the result is outputted. If noise is detected at any one of the stages, then an interruption process is performed.

REFERENCES:
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patent: 6191647 (2001-02-01), Tanaka et al.
patent: 6509768 (2003-01-01), Polizzi et al.
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patent: 2001/0018752 (2001-08-01), Yoshioka et al.
patent: 9-73400 (1997-03-01), None

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