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.
Patent No.:
Date of Patent:
Dec. 28, 2010
Filed:
Sep. 10, 2007
Takashi Oshikiri, Osaka, JP;
Takashi Oshikiri, Osaka, JP;
MegaChips Corporation, Osaka-shi, JP;
Abstract
A memory is provided which simplifies the manufacturing process on the supplier side while satisfying specifications provided from the user side. An address space of a memory core includes an information storage region, a code region, and a no-write region. The information storage region includes a first region where no-write region information is written and a second region where a fixed value is written. Program code is written in the code region. The no-write region information indicates the position of the no-write region, and the fixed value indicates a fixed value that is intended to be written to the no-write region. The ROM selects between the fixed value and original read data that is obtained by a data selecting section directly from the memory core, and outputs the selected one as read data.