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:
Apr. 23, 1996

Filed:

Aug. 04, 1993
Applicant:
Inventors:

Yasushi Akao, Kokubunji, JP;

Shiro Baba, Tokorozawa, JP;

Terumi Sawase, Hannou, JP;

Yoshimune Hagiwara, Hachioji, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
395800 ; 3642217 ; 3642285 ; 3642295 ; 3642305 ; 3642316 ; 3642328 ; 3642329 ; 3642389 ; 3642395 ; 3642407 ; 3642459 ; 36424692 ; 3642548 ; 3642678 ; 3642693 ; 364D / ; 364D / ; 36424291 ; 395180 ; 371 222 ;
Abstract

In developing the function of a data processing system using a semiconductor integrated circuit for data processing, comprising a non-volatile logical function block to which data is written electrically and a logical operation block utilizing the logical function block to execute the logic operation, data corresponding to the required specification and function of the system is written in the logical function block. Thereby, flexibility is obtained for setting and changing the required function to the semiconductor integrated circuit. The semiconductor integrated circuit also has an operation specification written to the logical block by a writing device designed to write to a non-volatile semiconductor storage device thereby improving the convenience of setting the functions required of the semiconductor integrated circuit.


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