MT8981数字交换芯片的编程与应用

Pragramming and Appliciation of the Digital Switching Chip MT8981

论文从数字交换芯片ＭＴ８９８１的内部硬件结构出发，介绍了怎样编程实现该芯片的数字交换功能，以及实现程控数字交换呼叫处理过程中，需由数字交换来协助完成的其它功能。其编程思想可拓广到ＭＩＴＥＬ公司同系列产品的其它数字交换芯片，广泛应用于诸如便携式用户小交换机、实验教学交换机以及语音信箱等通信产品的开发。

This paper introduces the way to program MT8981,a commercial digital switching chip produced by MITEL Co. ,to fulfill its digital switching function and other call handling functions aided by digital switching in Stored Program Controlled Exchange,by viewing its internal hardware architecture.With regard to this programming algorithm,it should be easy to program the other digital switching chips of the same MITEL Co. series for the purposes of developing some pragmatic telecommunication products such as portable PABX、experimental teaching exchange and voice mail box.