这是xilinx应用指南xapp454的中文版本。本应用指南说明与 Micron DDR2 SDRAM 器件连接时，Spartan™ -3 器件中 DDR2 SDRAM 存储器接口的实现。本文档先简单介绍了 DDR2 SDRAM 器件的特性，然后对 DDR2 SDRAM 存储器接口的实现进行了详细说明。-This is the xilinx application note xapp454 the Chinese version. This application note and the Micron DDR2 SDRAM device is connected, Spartan ™ -3 devices DDR2 SDRAM memory interface implementation. This document briefly describes the DDR2 SDRAM device features, and then the realization of DDR2 SDRAM memory interface is described in detail.