基于多通道DMA控制器的媒体播放器SoC设计与验证  

Design and validation of SoC media player based on multichannel DMA controller

作　　者：曾文龙[1] 周游[1] 贺珊[1] 郭东辉[1] 

机构地区：[1]厦门大学信息科学与技术学院,福建厦门361005

出　　处：《中国科技论文》2014年第1期45-48,共4页China Sciencepaper

基　　金：国家自然科学基金资助项目(61274133);高等学校博士学科点专项科研基金资助项目(20090121110019)

摘　　要：提出了一种基于多通道直接内存存取DMA(direct memory access)控制器的媒体播放器片上系统SoC(system on chip)设计方案,不仅实现了内外部存储空间和I/O器件之间的数据直接传输,而且实现了多通道数据的片上并行交换。仿真验证表明,该SoC设计方案在提高片上总线通信效率及减轻处理器负担的同时,还可提升系统在媒体播放方面的整体性能。We propose the design of a new media player SoC based on multichannel DMA controller,which cannot only realize di-rect data transmission between I/O devices and the internal and external storage,but can also achieve the multichannel data paral-lel transmission at the same time.Verification shows that our design can improve the efficiency of on-chip bus communication and reduce the burden of the micro processor,and at the same time improve the overall performance of the media player application.

关 键 词：媒体播放器 DMA控制器 SOC设计 Crossbar结构 多通道传输 

分 类 号：TN946[电子电信—信号与信息处理]