一种无阻塞的高阶电路交换方案设计  

A scheme design for high-order no blocking circuit switch

作　　者：孟李林[1] 

机构地区：[1]西安邮电学院ASIC设计中心,陕西西安710061

出　　处：《西安邮电学院学报》2007年第5期1-3,共3页Journal of Xi'an Institute of Posts and Telecommunications

基　　金：国家863计划课题(2003SSA1Z1190)

摘　　要：电路交换是SDH系统中的基本功能,提出一种无阻塞的高阶电路交换设计方案。针对交换电路的速度高、规模大、恭耗大等特点,给出了采用流水线设计思想和优化结构处理技术的电路设计解决方案。采用FPGA芯片对设计方案进行了功能验证并给出验证结果。设计方案能够实现接口速率为2.488Gbit/s的64路串行输入/输出信号,即1024×1024 STM-1/AU-4码流的无阻塞电路交换,无需外接其他逻辑部件。Circuit Switch is the basic function in SDH system. A design scheme lor high - order no blocking Circult Switch is presented. A pipeline and optimum structure are put forward for the circuit with high speed, very scale size and large power consume. The circuit has been verified with Altera FPGA, and the results of verification are shown. The design scheme can implement sixty four serial inputs/outputs with 2. 488Gbit/s, namely no blocking switches 1024 × 1024 STM- 1/AU - 4 without other circuits.

关 键 词：同步数字体系 电路交换 现场可编程器件 

分 类 号：TN402[电子电信—微电子学与固体电子学]