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:
Aug. 10, 2004
Filed:
Jun. 21, 2002
Ming Tang, San Jose, CA (US);
Jiann Liao, Campbell, CA (US);
Integrated Device Technology, Inc., Santa Clara, CA (US);
Abstract
A method and apparatus for reducing latency due to set up time between DMA transfers are described. The method comprises initiating arbitration of DMA channel requests prior to completion of a current DMA transfer; and initiating set up for a next DMA transfer prior to completion of the current DMA transfer according to the arbitration. One implementation of the apparatus includes one or more DMA channel interfaces providing a series of DMA channel requests such that a DMA channel request for a next DMA transfer is provided before a current DMA transfer is completed; and a DMA controller that initiates arbitration of DMA channel requests after they are provided by the one or more DMA channel interfaces and before the current DMA transfer is completed, and initiates set up for the next DMA transfer prior to completion of the current DMA transfer according to the arbitration.