利用CPC5621芯片实现车载调度机环路中继  

Application of CPC5621 in the vehicle-mounted dispatch switch

作　　者：辛利[1] 张志国[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050200

出　　处：《微型机与应用》2014年第2期28-30,共3页Microcomputer & Its Applications

摘　　要：为了满足应急通信系统中车载调度机稳定可靠的中继通信要求,提出了一种基于CPC5621芯片的环路中继电路设计方案。介绍了此设计在车载调度机中的典型应用,对CPC5621芯片的功能作了说明,给出了系统设计的硬件结构,分模块描述了利用CPC5621实现环路中继电路的方法,详细讲解了语音及信令的处理流程,并对系统软件设计进行了分析,给出了软件的处理流程。经过测试及应用,证明利用CPC5621芯片设计的环路中继完全达到了稳定、可靠的指标要求。In order to satisfy the requirements for stable and reliable LS trunk communication of the vehicle-mounted dispatch switch in the emergency response communication system , a CPC5621 chip-based loop trunk circuit design solution is put forward . The typical application of this design in the vehicle-mounted dispatch switch is introduced . The functions of the CPC5621 chip are stated and the hardware structure of the system is provided . The methods for implementing the loop trunk circuit by using CPC5621 chip are described for different modules , the processing flows of voice and signaling are explained in detail , and the system soft-ware design is analysed . After testing and applications , the design of LS trunk on CPC5621 is proved to meet the stability and reli-ability requirements .

关 键 词：应急通信系统 CPC5621芯片 环路中继 C8051F020 IDT82V1054 

分 类 号：TN927.2[电子电信—通信与信息系统] TN402[电子电信—信息与通信工程]