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1、嵌入式系统原理不设计嵌入式系统的存储器Copyright©YangMing.2013.ElectronicsandInformationEngineeringDepartmentofHuazhongUniversityofScienceandTechnologyWuhan,Hubei430074,P.R.China嵌入式系统的存储器•内容分类SRAM原理及应用>IDT7164（6264）双端口RAM原理及应用>IDT7007SDRAM原理及应用FLASH>NORFLASH–W39L040V>
2、NANDFLASH–K9F1208X0C串行EEPROMSlide1Copyright©YangMing.2013.ElectronicsandInformationEngineeringDepartmentofHuazhongUniversityofScienceandTechnologyWuhan,Hubei430074,P.R.China5.1概述•存储器基本概念计算机是能按照指令对各种数据进行自劢加工处理的电子设备存储器用于存储指令（程序）和数据，是计算机必丌可少的组成部分存储器内部存
3、储器和外部存储器>内存是电路板上的半导体存储器件>外存则包括硬盘、光盘、U盘、电子盘及各类存储卡Slide2Copyright©YangMing.2013.ElectronicsandInformationEngineeringDepartmentofHuazhongUniversityofScienceandTechnologyWuhan,Hubei430074,P.R.China5.1概述•存储器实例计算机存储系统结构Cac处理器h内部存储器外部存储器eSlide3Copyright©YangM
4、ing.2013.ElectronicsandInformationEngineeringDepartmentofHuazhongUniversityofScienceandTechnologyWuhan,Hubei430074,P.R.China5.1概述•存储器实例PC中的存储器Bios内存条Slide4Copyright©YangMing.2013.ElectronicsandInformationEngineeringDepartmentofHuazhongUniversityofScien
5、ceandTechnologyWuhan,Hubei430074,P.R.China5.1概述•存储器实例DSP的协处理器应用RAM、flashRAM、flashRAM、flashRAM、flash其它外部控模拟/数字模拟信号其它外部控主处理器DSP模拟/数字制器主处理器DSP转换制器转换Slide5Copyright©YangMing.2013.ElectronicsandInformationEngineeringDepartmentofHuazhongUniversityofSciencean
6、dTechnologyWuhan,Hubei430074,P.R.China5.1概述•存储器实例基于DM642的嵌入式DVR系统Slide6Copyright©YangMing.2013.ElectronicsandInformationEngineeringDepartmentofHuazhongUniversityofScienceandTechnologyWuhan,Hubei430074,P.R.China5.1概述•存储器实例8051单片机结构中断请求T1T2中断控制器4KBROM12
7、8BRAM2个定时器运算器控制器片内震荡器总线控制器4组I/O扩展RS-232串口控制信号P0P2P1P3RxDTxD片外晶体Slide7Copyright©YangMing.2013.ElectronicsandInformationEngineeringDepartmentofHuazhongUniversityofScienceandTechnologyWuhan,Hubei430074,P.R.China5.1概述•存储器实例基于GX处理器的嵌入式系统结构DDRSDRAMBIOSUSBRS-
8、232GeodeGX处理器CS5535CRT/TFTIDE硬盘PCI扩展设备音频电源模块液晶显示器接口或CF卡Slide8Copyright©YangMing.2013.ElectronicsandInformationEngineeringDepartmentofHuazhongUniversityofScienceandTechnologyWuhan,Hubei430074,P.R.China5.1概述•存储器实例基于FIC8120单通道DVR系统
