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. 20, 2024

Filed:

Jul. 27, 2023
Applicant:

Apple Inc., Cupertino, CA (US);

Inventor:

Michael R. Seningen, Austin, TX (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2016.01); G06F 12/0802 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0802 (2013.01); G06F 2212/60 (2013.01);
Abstract

A cache memory circuit that evicts cache lines based on which cache lines are storing background data patterns is disclosed. The cache memory circuit can store multiple cache lines and, in response to receiving a request to store a new cache line, can select a particular one of previously stored cache lines. The selection may be performed based on data patterns included in the previously stored cache lines. The cache memory circuit can also perform accesses where the internal storage arrays are not activated in response to determining data in the location specified by the requested address is background data. In systems employing virtual addresses, a translation lookaside buffer can track the location of background data in the cache memory circuit.


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