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:
Apr. 03, 2012
Filed:
Mar. 28, 2008
Jung Keun Lee, Daejeon, KR;
Sang Woo Park, Daejeon, KR;
Jung Keun Lee, Daejeon, KR;
Sang Woo Park, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided are a cache memory using a linear hash function and a method of operating the same. The cache memory includes: a first hash function module for converting a main memory address received from a central processing unit (CPU) into a first index value using a first hash function; a second hash function module for converting the main memory address into a second index value using a second hash function; a first comparator for comparing a tag value of a data block located at the first index value in the first bank with a tag value of the main memory address; and a second comparator for comparing a tag value of a data block located at the second index value in the second bank with the tag value of the main memory address. In a pair of linear hash functions according to the present invention, each constructed with a 2m×m binary matrix, even if m is an odd number, each of the linear hash functions has the highest degree of interbank dispersion and avoids conflicts in row, column, diagonal, anti-diagonal, and rectangular patterns, so that a 2-way skewed associative cache can be constructed in relatively wide ranges.