| 基于流水线结构的高速专用DMA系统设计 |
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| 引用本文： | 张涛,刘羽楠,李宝魁,姚素英.基于流水线结构的高速专用DMA系统设计[J].天津大学学报(自然科学与工程技术版),2006,39(7):815-819. |
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| 作者姓名： | 张涛 刘羽楠 李宝魁 姚素英 |
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| 作者单位： | 天津大学电子信息工程学院,天津300072 |
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| 摘 要： | 视频格式转换是当前应用研究领域的热点之一．论述了视频格式转换芯片中专用DMA系统的设计与实现方法．针对视频处理这一专用领域中高速数据传输和高速运算的特点，基于流水线结构优化设计，采用“双总线”的系统架构和依赖握手信号的传输控制方式，实现了每个时钟周期接近1个元素的高效数据传输，在较低的工作频率上满足了芯片对实时处理的要求．
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| 关 键 词： | 视频格式转换 流水线 |
| 文章编号： | 0493-2137（2006）07-0815-05 |
| 收稿时间： | 2005-05-10 |
| 修稿时间： | 2005-05-102005-11-10 |
Design on a Pipeline-Based High-Speed Specific DMA System |
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| ZHANG Tao,LIU Yu-nan,LI Bao-kui,YAO Su-ying.Design on a Pipeline-Based High-Speed Specific DMA System[J].Journal of Tianjin University(Science and Technology),2006,39(7):815-819. |
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| Authors: | ZHANG Tao LIU Yu-nan LI Bao-kui YAO Su-ying |
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| Institution: | School of Electronic Information Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Video format conversion is one of the ad hocs in present aplication research field.in this paper,the design and implementation of a specific directly memory access(DMA)system integrated in a video format con- version chip were discussed.Due to particular system requirements of high speed data transfer and high speed computation in video processing,a pipeline-based dual-bus architecture and certain handshake protocol transfer control method were proposed to realize high data transfer efficiency,nearly one element per cycle.Thus,the video chip can fulfill real-time data processing at a relatively low frequency. |
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| Keywords: | DMA |
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