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:
Feb. 13, 2007
Filed:
May. 09, 2003
Timothy D. Davis, Arlington, TX (US);
Timothy D. Davis, Arlington, TX (US);
VIA-Cyrix, Inc., Fremont, CA (US);
Abstract
A method and system is disclosed for minimizing data array accesses during a read operation in a cache memory. The cache memory has one or more tag arrays and one or more data arrays. After accessing each tag array, a selected data array is identified, and subsequently activated. At least one predetermined data entry from the activated data array is accessed, wherein all other data arrays are deactivated during the read operation. In another example, the cache memory is divided into multiple sub-groups so that only a particular sub-group is involved in a memory read operation. By deactivating any many circuits as possible throughout the read operation, the power consumption of the cache memory is greatly reduced.