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. 28, 2014
Filed:
Oct. 26, 2012
Lsi Corporation, Milpitas, CA (US);
Brandon L. Hunt, Colorado Springs, CO (US);
Luke E. McKay, Rose Hill, KS (US);
Moby J. Abraham, Lilburn, GA (US);
Lakshmana M. Anupindi, Suwanee, GA (US);
LSI Corporation, Milpitas, CA (US);
Abstract
Methods and structure for enabling re-training of a DDR memory controller in a storage device without loss of data in the DDR memory devices of the cache memory in response to detecting failure of the memory subsystem during operation of the storage device. In response to detecting a failure of the memory subsystem, the memory controller is reset without resetting the memory devices. The memory controller is then re-trained for operation with the memory device. During the re-training, self-refresh mode of the memory devices is disabled and manual refresh is performed by a processor of the storage device to thereby retain any user data in the memory device.