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:
Jan. 25, 2005
Filed:
Oct. 26, 2001
Seungyoon Peter Song, East Palo Alto, CA (US);
Seungtalk Michael Song, Palo Alto, CA (US);
Seungyoon Peter Song, East Palo Alto, CA (US);
Seungtalk Michael Song, Palo Alto, CA (US);
Elan Research, Inc., Palo Alto, CA (US);
Abstract
A caching device using an N-way replacement mechanism is disclosed. The replacement mechanism comprises at least one replacement order list with N positions, with the first-to-replace position at one end and the last-to-replace position at the opposite end, each position containing a way number, N way comparators, a control unit, a replacement order generator, and receiving a hit signal and, in case of a hit, a hit way number. A system and method in accordance with the present invention provides a programmable replacement mechanism applicable to caching devices, such as instruction and data caches and TLBs (translation lookaside buffers) in processors or texture map caches in graphics systems, that use set associative or fully associative organization. A replacement order list is maintained that specifies the order of which the elements in a set are to be selected for replacement.