ALtera公司的ED3开发板，用户手册，The DE3 board has plenty of features that allow users to implement a wide range of designed circuits.-The DE3 board has plenty of features that allow users to implement a wide range of designed circuits.The Stratix®　III device is capable of dealing with resource consuming projects and complex algorithm verification, and the HSTC interface is provided for high-speed inter-connection and configurable I/O standards. The DDR2 SO-DIMM socket offers the opportunity of faster memory access experience, while the SD card socket provides the extension of data storage.