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:
Oct. 01, 2002
Filed:
Apr. 13, 1999
Satomi Ishimoto, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
There is provided an address decoding circuit including (a) a first address decoder for practical use for decoding an address which is particular to an individual object, (b) a second address decoder for test use for decoding a constant address regardless of objects, and (c) a logic circuit receiving a selection signal and switching from decoding result transmitted thereto from the first address decoder to decoding result transmitted thereto from the second address decoder, and vice versa in accordance with the selection signal. The address decoding circuit selects decoding result of an address used for a test, which is particular to peripheral macros, in a test mode in accordance with the selection signal. Hence, when peripheral macros are mounted on different chips, it would be possible to use a common vector, even if an address for practical use is changed. This ensures reduction in steps of re-constructing test vector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile