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在这里
https://www.opalkelly.com/products/xem3010/
The XEM3010 is an integration module based on a 1,500,000-gate Xilinx Spartan-3 FPGA (XEM3010-1500P) or 1,000,000-gate(XEM3010-1000). In addition to a high gate-count FPGA, the XEM3010 utilizes the high transfer rate of USB 2.0 for configuration downloads, enabling speedy FPGA configuration and data transfer. With integrated SDRAM, power supplies, and platform flash, the XEM3010 is the most popular Spartan-3 module.