通过分析嵌入式XSCALE 处理器的性能和CDMA 1X 无线通信的概况,给出了嵌入式 无线接入Internet 终端设备的系统设计、硬件构成、软件流程、无线通信模块的内部结构以及微处理器PXA255 与CDMA 1X 通信模块的接口框图设计。 关键词:无线接入;CDMA1X 模块;XSCALE 处理器;流程图 Abstract:Analyzed the function of embedded XSCALE processor and CDMA 1X wireless network, provided design of wireless access system and hardware components and software flowcharts and inside frame of CDMA 1X module and the interface frame design of PXA255 with CDMA 1X. Key words:Wireless Access,CDMA1X module,XSCALE processor,flowchart