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. 03, 2007
Filed:
Feb. 25, 2004
John A. Hayden, Sharon, MA (US);
Gregory T. Koker, Newton, MA (US);
John A. Hayden, Sharon, MA (US);
Gregory T. Koker, Newton, MA (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
A DMA controller includes at least one peripheral DMA channel for handling DMA transfers on a peripheral access bus; at least one memory DMA stream, including a memory destination channel and a memory source channel, for handling DMA transfers on first and second memory access buses; first and second address computation units for computing updated memory addresses for DMA transfers; and first and second memory pipelines for supplying memory addresses to the first and second memory access buses, respectively, and for transferring data on the first and second memory access buses. The DMA controller further includes a prioritizer configured to map DMA requests from different DMA requesters to the peripheral channels in response to programmable mapping information.