All Categories : Technical Presentations Bookmark and Share

Title : Ways of Bypassing CPU
Company : MindTree Ltd
File Name : Universal DMA Controller-Article.doc
Size : 515584
Type : application/msword
Date : 26-Feb-2010
Downloads : 20

Rate This File
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Direct Memory Access (DMA) is one of several methods for coordinating the timing of data transfers between an input/output (I/O) device and the core processing unit or memory in a computer. DMA is one of the faster types of synchronization mechanisms, generally providing significant improvement over interrupts, in terms of both latency and throughput. An I/O device often operates at a much slower speed than the core. DMA allows the I/O device to access the memory directly, without using the core. DMA can lead to a signifi-cant improvement in performance because data movement is one of the most common operations performed in processing applications. There are several advantages of using DMA, rather than the one in which core does a memory to transfer operation and vice versa and this paper discuss all these advantages with various applications of DMA Controller. DMA is used in almost every complex system or subsystems , but its observed that teams either build the DMA controller from scratch for each project for specific application or take the existing DMAC available from elsewhere. Here in this article I have tried to discuss the architecture of DMAC that can be used with any kind of Bus, configuration (parallel, serial transfers), can be connected to any kind of ports, most importantly any kind of software assumptions can be implemented in the DMAC very easily. I call it Universal DMA Controller.
User Reviews More Reviews Review This File
Aldec

Featured Video
Jobs
Mid to Senior Level Electrical Engineer for Gordon Prill, Inc at Santee, California
Principal Engineer, Firmware Engineering for Western Digital at Milpitas, California
Senior Hardware Engineer for Abaco Systems Inc at Austin, Texas
Sr. Electrical Hardware Project Engineer for Stellartech Research Corp at Milpitas, California
Senior Software Engineer for Abaco Systems Inc at Huntsville, Alabama
Upcoming Events
Linley Fall Processor Conference at Hyatt Regency Santa Clara 5101 Great America Pkwy Santa Clara CA - Oct 23 - 24, 2019
SMTA Guadalajara 2019 at Expo Guadalajara Guadalajara, Mexico - Oct 23 - 24, 2019
Silvaco SURGE Silicon Valley, Oct. 24 at 2811 Mission College Blvd. 6th floor Santa Clara CA - Oct 24, 2019
DVCon Europe 2019 at Holiday Inn Munich City Center Munich Germany - Oct 29 - 30, 2019



Internet Business Systems © 2019 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise