Design and implementation of SPI flash controller based on Xilinx FPGA

The design was chosen FPGA Xilinx’s Spartan-3A DSP family XC3SD3400A, the package uses FG676. Compared with competing FPGA products, Spartan-3A DSP 3400A LP has a 25% power e- ciency advantage, the lowest cost device performance at 250Mhz clock speeds up to 4.06 GMACs per mW. This series of FPGA can finish signal processing function without spending extra logic resources, so designers can achieve performance and cost objectives in the case of higher ecacy. Used to construct a dedicated DSP circuitry Xtreme DSP DSP48A logic chip includes a dedicated 18 x 18 multipliers and 18 pre-adder and 48 post-adder / accumulator, at low cost DSP provides excellent performance. Spartan-3A DSP FPGA platform standby mode can also help prolong battery life in these applications.