PCI9052在CPU单元中的应用  

Application of PCI9052 in CPU Unit

作　　者：韩洪丽[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《计算机与网络》2009年第6期44-45,55,共3页Computer & Network

摘　　要：文章主要介绍了PCI9052芯片在H20-20交换机系统CPU单元中的应用,详细介绍了在交换机系统CPU单元中利用PCI9052芯片将PCI访问转换为ISA访问的工作原理和具体实现过程。该芯片的应用使得H20-20交换机系统CPU的升级换代成为可能,大大提高了交换机CPU单元的处理速度和性能,为交换机增值业务的研发提供了平台,增强了H20-20交换机产品的市场竞争力。This article mainly introduces the application of PCI9052 chip in the CPU Unit of H20-20 Digital Telephone Switching System. The article describes in detail the operating principle for how to use PCI9052 chip to convert PCI visit to ISA visit and the specific realization process in the CPU Unit of the Digital Telephone Switching System. The application of this chip makes it possible for the CPU of H20-20 Digital Tdephone Sw]tching System to be upgraded, gready improves the processing speed and capability of the CPU Unit of the Digital Telephone Switching System, provides the R＆D phtform for the value-added services of the Digital Telephone Switching System and enhances the market competitiveness of the H20-20 Digital Telephone Switching System.

关 键 词：PCI ISA PBX CBUS CPU 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]