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MX429是一种单片式1200波特FFSK调制解调器,片内提供数据、状态、控制等多种寄存器及可编程定时器,它主要是为集群通信系统而设计并能完成MPT1317/MPT1327信令,但也可以用于一般的数据通信。MX429在1200波特速率上是全双工工作,提供与微型计算机的8位并行接口而且片内有一可编程定时器,定时间隔在8～120比特间可调。本文介绍了MX429在集群移动通信系统中的应用。
The MX429 is a monolithic 1200-baud FFSK modem that provides various registers and programmable timers for data, status, control and other functions. The MX429 is designed primarily for trunked communication systems and can perform MPT1317 / MPT1327 signaling. However, It can also be used for general data communications. The MX429 is fully-duplexed at 1200 baud rates and offers an 8-bit parallel interface to a microcomputer with an on-chip programmable timer and adjustable timing between 8 and 120 bits. This article describes the MX429 in the cluster mobile communication system.