| 嵌入式音频处理器中DMA控制器的设计 |
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| 引用本文： | 王俊,应忍冬. 嵌入式音频处理器中DMA控制器的设计[J]. 信息技术, 2011, 0(3): 42-46 |
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| 作者姓名： | 王俊 应忍冬 |
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| 作者单位： | 上海交通大学电子工程系,上海,200240 |
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| 摘 要： | 高性能的DMA控制器是音视频等多媒体处理器的重要组成部分。通过分析DMA控制器在嵌入式音频处理HiPAP中担负的数据传输任务及数据特点,设计了面向AMBA AHB总线的双通道高性能的DMA控制器。在FPGA平台上的实际运行结果显示,该DMA控制器的数据传输性能比使用CPU至少提升了45%。
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| 关 键 词： | DMA 控制器 AHB |
Design of DMA controller in embedded audio processor |
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| WANG Jun,YING Ren-dong. Design of DMA controller in embedded audio processor[J]. Information Technology, 2011, 0(3): 42-46 |
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| Authors: | WANG Jun YING Ren-dong |
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| Affiliation: | (Department of Electronic Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | High-performance DMA controller is the key component in multimedia processor.After the analysis for data transfer in embedded audio processor HiPAP,an AHB supported 2-channel audio DMA controller is proposed in this paper.Compared with CPU,the performance of data transfer is improved by up to 45% on FPGA platform. |
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| Keywords: | DMA AHB |
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