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:
Mar. 24, 1998
Filed:
Nov. 08, 1994
Yui Kaye Ho, Austin, TX (US);
William C Moyer, Dripping Springs, TX (US);
Joseph A Gutierrez, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method and apparatus for performing a cache operation in a data processing system (10). In one form, the present invention has a 'block address translation cache (BATC) only mode' in which a received logical address is compared to the logical addresses stored in only one of a plurality of address translation caches, i.e. the block address translation cache (BATC) (76). The overhead associated with loading and comparing one or more other caches (78) is not incurred. If the comparison with that one cache (BATC) (76) produces a hit, that cache (BATC) (76) supplies the address that is used as the physical address. If the comparison with that one cache (BATC) (76) produces a miss, then a 1:1 mapping is used and the received logical address is used as the physical address.