ETX模块在CPCI总线CPU卡上的应用  

Application of ETX on CPCI bus CPU card

作　　者：吕茜[1] 

机构地区：[1]华北计算技术研究所,北京100083

出　　处：《计算机工程与设计》2008年第19期4950-4953,5001,共5页Computer Engineering and Design

摘　　要：介绍了ETX嵌入式CPU模块的特点,并在此基础上给出了基于该模块的CPCI总线CPU卡的设计方案。充分利用了CPCI较为适用恶劣环境的特点和ETX模块高性能、低功耗、集成度高等优势,简化了设计、节省了研制费用和缩短了研制周期。设计扩展(增加)了I/O接口,对接口展开了优化设计,并将尽可能多的接口扩展到后走线板上,适应车载计算机的使用要求。该卡已经通过在车载计算机上的应用测试,达到了该项目的技术指标要求。The characters of the ETX embedded modular computer are described, on the basis of which the design ofCPCI CPU Card are discussed in detail. The paper simplifies design, reduces cost, and shortens the research period, through making full use of CPCI＇ s adaptability to bad environment and ETX module＇ s advantages-high capacity, low energy consumption and high integration. The design adds general I/O interfaces by optimizing the design ofI/O interfaces. Considering the special use ofvehiclebased computers, theaddi- tional I/O interfaces are installed on the rear board. The CPU card passed through the application test on vehicle_based computers, and met the project＇ s request for technical indicators.

关 键 词：ETX模块 CPCI总线 I/O接口 桥芯片 印制板 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]