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介绍了ADSP2181的IDMA端口的工作原理和定时关系。分析了用IDMA端口作为多处理器之间通信口的方法,给出了用双片ADSP2181构成的高速信号处理系统的硬件逻辑电路和IDMA端口通信控制软件的编程例子。该系统在某无线通信设备中的实际应用表明其是一个优良的方案。
Describes the working principle and timing relationship of ADSP2181’s IDMA port. The method of using IDMA port as communication port between multiprocessors is analyzed. The programming example of hardware logic circuit and IDMA port communication control software of high speed signal processing system with two slices of ADSP2181 is given. The practical application of the system in a wireless communication device shows that it is an excellent solution.