基于MPC8280的IMA E1数据采集系统设计

Design of IMA E1 Data Acquisition System Based on MPC8280

IMA E1传输是E1升级到光纤的过渡技术,能有效地提高传输带宽。这里选用PowerPC MPC8280网络处理器,设计实现了基于PCI总线的IMA E1数据采集系统。首先论述系统的设计思想和总体结构,并详细的介绍UTOPIA接口、PCI接口和总线控制功能模块的详细设计过程。最后对硬件进行信号完整性分析,以SDRAM的数据线为例,给出了消除反射干扰的解决方法。

The transmission of IMA E1 is transition technology upgrading from E1 to fiber which could increase the bandwidth effectively. The PowerPC MPC8280 communication microprocessor chip is chosen,and implementation of IMA E1 data acquisition system based on PCI bus is also introduced. Firstly, the general system design and general architecture is introduced,Then,the detailed design process of UTOPIA interface, PCI interface and bus control function are given. Finally,the signal integrity analysis for the data line of SDRAM is analyzed,and the solution of reflection interference is given.