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:
Jul. 17, 2007
Filed:
Nov. 19, 2004
Kent D. Moat, Winfield, IL (US);
Raymond B. Essick, Iv, Glen Ellyn, IL (US);
Philip E. May, Palatine, IL (US);
James M. Norris, Naperville, IL (US);
Kent D. Moat, Winfield, IL (US);
Raymond B. Essick, IV, Glen Ellyn, IL (US);
Philip E. May, Palatine, IL (US);
James M. Norris, Naperville, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A cache for storing data elements is disclosed. The cache includes a cache memory having one or more lines and one or more cache line counters, each associated with a line of the cache memory. In operation, a cache line counter of the one or more of cache line counters is incremented when a request is received to prefetch a data element into the cache memory and is decremented when the data element is consumed. Optionally, one or more reference queues may be used to store the locations of data elements in the cache memory. In one embodiment, data cannot be evicted from cache lines unless the associated cache line counters indicate that the prefetched data has been consumed.