基于MPC8260与NP7250微码通信模块的设计与实现

Design and Realization of Microcode Communication Module Based on MPC8260 And NP7250

文章给出了基于AMCC的NP7250、NPX5700和NPX5800交换套片的全IP交换平台的构建方案,重点介绍了在高性能的网络处理器NP7250和嵌入式微处理器MPC8260之间的微码通信模块的设计与实现的方法,微码通信模块由两个部分组成:处于用户数据面(网络处理器侧)的通信模块UCOM和控制面(主CPU侧)的通信任务UCOM_TASK.

This paper presented a scheme of building all-IP platform based on AMCC＇ s switch chipsets including NP7250, NPX5700 and NPX5800, mainly introducing designing and realization methods of the microcode communicating module between the high-powered embedded microprocessor MPC8260 and the network processor NP7250. The microcode communicating module included two parts ： one part is the communicating module--UCOM located in the user data side （network processor unit）; the other is communicating task of UCOM_TASK located in the control side （host cpu）.