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:
Jul. 17, 2018
Filed:
Jul. 05, 2016
Fujitsu Limited, Kawaski-shi, Kanagawa, JP;
Michitaka Hashimoto, Kawaski, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A method includes setting a first logical value in a control register provided in a variable delay control circuit that is included in a memory controller, detecting a first stuck-at fault of a second logical value that is a value except for the first logical value, the first stuck-at fault having occurred in one of a plurality of control lines, in accordance with a result of a comparison between a logical value output from the memory controller and an expected value of the logical value, setting the second logical value in the memory controller, and detecting a second stuck-at fault of the first logical value, the second stuck-at fault having occurred in one of the plurality of control lines, in accordance with a result of a comparison between a logical value output from the memory controller and an expected value of the logical value.