基于AHB总线的USB2．0总线接口单元设计  

Design of USB 2.0 Bus Interface Unit Based on AMBA AHB Bus

作　　者：李俊[1] 刘卫东[2] LI Jun, LIU Wei-dong（1.College of Information Science and Engineering,Ocean University of China,Qingdao 266100,China;2.Hisense Electric Appli- ance Limited Company,Qingdao 266071, China）

机构地区：[1]中国海洋大学信息科学与工程学院,山东青岛266100 [2]海信电器股份有限公司,山东青岛266071

出　　处：《电脑知识与技术》2012年第9期6140-6143,6151,共5页Computer Knowledge and Technology

摘　　要：介绍了基于AMBAAHB总线USB2．0总线接口单元（BIU）的设计。首先概要介绍了USB2．0和AMBAAHB这两种总线协议数据传输的特点，重点介绍了USB总线与AHB总线间的总线接口单元的模块设计。最后通过验证，证明接口符合AHB协议，且能完成所要求的所有功能。该IP针对usBMassstorage的运用，需要处理大量的突发数据，所以通过设计DMA控制器，大大提高了数据传输率和系统效率。The design of USB2.0 bus interface unit which is based on AMBA AHB bus protocol is introduced.The data transmis- sion features of usb 2.0 and AMBA AHB bus protocol are presented simply Then the module design of bus interface unit be- tween USB2.0 bus and AHB bus is described. FinaUy,it is proven that the interface conforms to AHB protocol ,and can perform all required functions by means of Verification.This IP is used for USB Mass storage, so it needs to deal with a lot of unexpected data, So the DMA controller can increase the data transmission rate and system efficiency.

关 键 词：USB 2.0 AMBA AHB总线 总线接口单元 DMA控制器 ARM处理器 

分 类 号：TP391[自动化与计算机技术—计算机应用技术;自动化与计算机技术—计算机科学与技术]