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MX429A是MX·COM公司最初专为集群移动通信系统研制的MSK调制解调器芯片。全双工通信波特率为1200/2400bit/s。发送时自动产生错误校验字 ,接收时自动进行错误检测 ,并能够检测信道码字同步序列。具有8 -bit并行微处理器接口。该芯片是根据MPT1327集群移动通信系统信令设计的。本文系统全面地介绍了其功能特点、内部结构、引脚功能、校验字生成算法、收发时序、上电软件流程等。最后给出其具体应用。
The MX429A is the MSK modem chip originally developed by MX-COM for trunked mobile systems. Full duplex communication baud rate 1200 / 2400bit / s. Sent automatically generate error check word, receive automatic error detection, and can detect the channel code word synchronization sequence. With 8-bit parallel microprocessor interface. The chip is based on the MPT1327 trunking mobile communication system signaling design. This paper systematically introduces its features, internal structure, pin function, check word generation algorithm, send and receive timing, power-on software processes. Finally, given its specific application.