EMIF是DSP嵌入式系统中重要的外扩接口，往往连接大容量/高速存储器、并行AD/DA、外扩特殊功能芯片，甚至连接FPGA或者ASIC。-EMIF is a DSP embedded system is an important external expansion interface, often connect large-capacity/high-speed memory, parallel AD/DA, outside the extended special function chi