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. 06, 2012
Filed:
Aug. 29, 2008
William C. Moyer, Dripping Springs, TX (US);
Quyen Pho, Austin, TX (US);
William C. Moyer, Dripping Springs, TX (US);
Quyen Pho, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A snoop look-up operation is performed in a system having a first cache and a first processor. The first processor generates access requests to the first cache for data. Snoop look-up operations are performed in the cache. The snoop look-up operations are based on snoop requests from a snoop queue. The snoop requests correspond to entries in the snoop queue. An access request from the first processor is performed in response to a consecutive number of snoop look-up operations exceeding a first limit. This is useful in avoiding having no processor operations while performing snoop look-up operations. Similarly, consecutive access requests can be counted and if a second limit is exceeded, a snoop look-up operation can be performed.