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.

Date of Patent:
Aug. 13, 2019

Filed:

Apr. 17, 2017
Applicant:

Advanced Micro Devices, Inc., Sunnyvale, CA (US);

Inventors:

John Kalamatianos, Boxborough, MA (US);

Shrikanth Ganapathy, Mountain View, CA (US);

Steven Raasch, Boston, MA (US);

Assignee:

ADVANCED MICRO DEVICES, INC., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/10 (2006.01); G11C 29/42 (2006.01); H03M 13/19 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1064 (2013.01); G11C 29/42 (2013.01); H03M 13/19 (2013.01);
Abstract

A computing device having a cache memory (or 'cache') is described, as is a method for operating the cache. The method for operating the cache includes maintaining, in a history record, a representation of a number of bit errors detected in a portion of the cache. When the history record indicates that no bit errors or a single-bit bit error was detected in the portion of the cache memory, the method includes selecting, based on the history record, an error protection to be used for the portion of the cache memory. When the history record indicates that a multi-bit bit error was detected in the portion of the cache memory, the method includes disabling the portion of the cache memory.


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