EEPROM是一种可以进行电擦写，掉电后数据不丢失的存储器。它具有功耗

低、容量大、烧写与擦除速度快等优点，并且内部嵌入算法完成对芯片的操作，简化了软件的工作量，因而在数字信号处理系统中得到了广泛的应用。在DSP系统中通常在上电或复位时从外部加载并执行用户的程序代码，这个过程叫做自举加载。现要将程序空间的代码烧写入扩展的外部EEPROM中，以实现自举加载功能。

-EEPROM can be an electric erasable, power-fail without loss of data after the memory. It has low power consumption, large capacity, and the erasure of burning speed advantages, and the internal algorithm embedded chip to complete the operation, simplify the software workload, which in digital signal processing system, which is widely used. DSP system-- usually in the reduction or loaded from external users and the implementation of the code, This process is called bootstrap loading. Is the space should procedure code burned into the expansion of the external EEPROM, to achieve self-loading function held.