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. 10, 2017
Filed:
Oct. 19, 2015
Applicant:
Freescale Semiconductor, Inc., Austin, TX (US);
Inventors:
Assignee:
NXP USA, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01); G06F 12/127 (2016.01); G06F 12/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0659 (2013.01); G06F 3/0619 (2013.01); G06F 3/0679 (2013.01); G06F 12/0646 (2013.01); G06F 12/127 (2013.01);
Abstract
A memory system capable of running a variety of different read retry sequences includes a memory controller that has a boot ROM with stored code for executing a read retry sequence. A non-volatile memory device such as a NAND flash includes a read retry register and receives command instructions including a read retry instruction from the memory controller and in response provides read data. A second non-volatile memory that is external to the NAND flash has a read retry table describing read retry sequence items that include a command, a read retry register address, and read retry data for updating the read retry register.