The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 07, 2000

Filed:

Oct. 09, 1997
Applicant:
Inventors:

Hidetaka Ebeshu, Kawasaki, JP;

Kouji Arai, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
713501 ; 713601 ;
Abstract

A microprocessor that includes a processor (6) for executing an instruction in accordance with an internal clock signal, an instructing section (3) for outputting a frequency multiplication rate instructing signal corresponding to the data output from the processor, and a data selecting section (2) for selectively outputting the frequency multiplication rate instructing signal. A PLL section changes the frequency of the internal clock signal in response to the frequency multiplication rate instructing signal output from the data selecting section. Inhibiting section inhibits the internal clock signal from being supplied from a PLL section to the processor for a predetermined period until the frequency of the internal clock signal in the PLL section becomes stable.


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