基于SDA80D51芯片的以太电话机的设计与实现

Design and realization of the Ethernet phone based on SDA80D51

提出了一种新型以太电话机的设计,采用德国Infineon公司的SDA80D51芯片作为主控单元,同时使用Realtek公司的RTL8019AS作为网络接口模块,来实现高度集成、具有较高性价比的话机。同时,还针对嵌入式系统硬件资源受限的特点,提出了一系列对代码和数据存储区占用的优化方法和技巧。

An Ethernet IP phone design was introduced in this paper. The design used SDA80D51 as the MCU and DSP unit to realize an efficient Ethernet phone. Some advice on the program of the MCU system was also given.