Circuit assembly and method of synchronizing plural circuits

Details Circuit assembly and method of synchronizing plural circuits Circuit assembly and method of synchronizing plural circuits

1998-10-14

2000-09-12

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327142, 327198, 327202, H03L 700

Patent

active

061183148

ABSTRACT:
The present invention includes a circuit assembly and method of synchronizing plural circuits. According to one aspect of the present invention, a circuit includes: an oscillator configured to generate a reference clock signal; a first circuit including: a first divider configured to generate a first internal clock signal responsive to the reference clock signal; and reset generation circuitry configured to receive an external reset signal and generate a reset second circuit signal synchronized with a predefined position of the first divider, with the reference clock signal and with the external reset signal; and a second circuit including: reset detection circuitry configured to generate a reset detection signal synchronized with the reset second circuit signal and the reference clock signal; and a second divider configured to set to a predefined position responsive to the reception of the reset detection signal and generate a second internal clock signal synchronized with the first internal clock signal.

REFERENCES:
patent: 5510740 (1996-04-01), Farrell et al.
patent: 5634116 (1997-05-01), Singer
patent: 5751665 (1998-05-01), Tanoi
patent: 5808494 (1998-09-01), Chang et al.
patent: 5859549 (1999-01-01), Shuholm

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