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一种用于USB 2.0的新型片上通信数据通道结构
引用本文:周维,黄宏,周晓方,孙承绶.一种用于USB 2.0的新型片上通信数据通道结构[J].复旦学报(自然科学版),2007,46(1):76-80.
作者姓名:周维  黄宏  周晓方  孙承绶
作者单位:复旦大学,专用集成电路与系统国家重点实验室,上海,201203;复旦大学,专用集成电路与系统国家重点实验室,上海,201203;复旦大学,专用集成电路与系统国家重点实验室,上海,201203;复旦大学,专用集成电路与系统国家重点实验室,上海,201203
基金项目:上海市应用材料研究与发展项目
摘    要:提出了一种改进的用于片上集成的USB2.0控制器的数据通道结构,运行时将有限的数据缓冲资源动态分配和实时回收,在增加少量RAM的前提下,显著改善了数据通道的吞吐量.该设计成功地应用于家庭网关SoC平台中,测试结果表明,该结构与具有同样大小缓冲区的现有数据通道相比,吞吐量平均提高63%,对RAM资源的利用率平均达到95%以上.

关 键 词:片上通信  USB2.0  数据通道  吞吐量  动态分配和回收
文章编号:0427-7104(2007)01-0076-05
修稿时间:2006-05-26

A Novel on-Chip Communication Data Channel Architecture Used in USB 2.0
ZHOU Wei,HUANG Hong,ZHOU Xiao-fang,SUN Cheng-shou.A Novel on-Chip Communication Data Channel Architecture Used in USB 2.0[J].Journal of Fudan University(Natural Science),2007,46(1):76-80.
Authors:ZHOU Wei  HUANG Hong  ZHOU Xiao-fang  SUN Cheng-shou
Abstract:A novel architecture of data channel for on chip communication used in USB 2.0 device controller integrated to SoC is proposed.Through dynamic allocating and reclaiming limited channel buffer resource on runtime,channel throughput is obviously improved without obviously increasing RAM size.This novel channel architecture has been successfully applied to home network SoC platform.Testing result shows that compared to traditional channel architecture the present architecture has improved the throughput by 63% in average; meanwhile the average usage ratio of buffer resource of more than 95% has been obtained.
Keywords:on-chip communication  USB 2  0  data channel  throughput  dynamically allocation and reclaiming
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