摘要
介绍了采用IXP425作为主控单元和3片DM642作为数据处理单元的会议电视终端的硬件设计原理和实现方法。IXP425和DM642之间采用PCI总线连接,各模块之间数据传输速度快,提高了数据处理效率。本终端成本低、运行稳定、功能全、接口丰富、数据处理速度快,既能在专网运行也能在普通IP网络运行。
The hardware design principle and implementation method of video conference terminal are introduced. This terminal uses IXP425 as the main control unit and 3 pieces of DM642 as the data processing unit. IXP425 and DM642 are connected with PCI bus. The data transfer speed between the main control unit and the data processing unit can be enhanced, and the efficiency of data processing can be improved. The terminal has some advantages such as low cost, work stability, functional comprehensiveness, rich interfaces, rapid data-processing speed, and can run both on the special network and general IP network.
出处
《电视技术》
北大核心
2010年第5期117-120,共4页
Video Engineering
