DSPC5400硬件基础讲义.ppt

* 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * 4563456564654 * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * * 2003 (C) DSP Technology Center of SJTU * · * 第二章 DSP硬件基础 C5400总体结构 存储器结构 中央处理单元（CPU） * C5400总体结构 改进的哈佛结构 多套总线 独立的程序总线和数据总线 （取指和数据访问可以同时进行） 四套总线（一套程序总线，三套数据总线） （提高CPU的数据吞吐量） 具备中断管理、重复操作及函数调用等控制机制 * C5400的功能模块 * C5400总体结构(续) 总线结构 程序总线PB，负责读取指令和数据表格 数据总线CB、DB和EB，CB和DB读取数据 EB存储数据 地址总线PAB、CAB、DAB和EAB 外设总线 * 地址总线 访问类型 数据总线 PAB CAB DAB EAB PB CB DB EB ? ? 读长数据(32bit） 读程序 ? ? ? ? ? ? ? ? 写程序 ? ? ? ? ? ? ? ? 读单数据 ? ? ? ? ? ? ? ? 读双数据 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 写单数据 ? ? ? ? ? ? ? 并行读/写数据 ? ? ? ? ? ? Dual Read/Coeff Read ? ? ? ? ? ? ? ? 读外设 ? ? ? ? ? ? ? ? 写外设 ? ? ? ? ? ? ? ? ? 读写访问中的总线使用 总线结构(续) * 程序空间: 程序代码、常系数表格 数据空间：程序处理时的数据和结果 I/O空间 ：映射为外部设备、扩展外部 数据存储器等 存储器结构 * 存储器类型 RAM（片内或片外） ROM （片内或片外） DARAM (Dual Access