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:
Nov. 27, 2001
Filed:
Dec. 29, 1999
Lance Leslie Flake, Boulder, CO (US);
Timothy Richard Feldman, Louisville, CO (US);
STMicroelectronics, Inc., Carrollton, TX (US);
Abstract
A cache system and method for configuring and accessing a cache that enables a binary-sized memory space to be efficiently shared amongst cache and non-cache uses. A storage device is provided having a plurality of blocks where each block is identified with a block address. An access request identifies a target block address. The target block address includes an upper portion and a lower portion. A non-binary divide is performed on the upper portion to produce a quotient and a remainder. The remainder portion is combined with the lower portion to create an index. The index is applied to a tag memory structure to select an entry or set of entries in the tag memory structure. The content of the selected entry is compared to the quotient portion to determine if the target block is represented in the cache.