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, 2007
Filed:
Sep. 09, 2004
William C. Moyer, Dripping Springs, TX (US);
Lea Hwang Lee, Austin, TX (US);
Afzal M. Malik, Austin, TX (US);
William C. Moyer, Dripping Springs, TX (US);
Lea Hwang Lee, Austin, TX (US);
Afzal M. Malik, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
In one embodiment, a data processing system () includes a first master, storage circuitry () coupled to the first master () for use by the first master (), a first control storage circuit () which stores a first prefetch limit (), a prefetch buffer (), and prefetch circuitry () coupled to the first control storage circuit, to the prefetch buffer, and to the storage circuitry. In one embodiment, the prefetch circuitry () selectively prefetches a predetermined number of lines from the storage circuitry into the prefetch buffer () based on whether or not a prefetch counter, initially set to a value indicated by the first prefetch limit, has expired. In one embodiment, the first prefetch limit may therefore be used to control how many prefetches occur between misses in the prefetch buffer.