Xilinx has three very similar kits:
- Spartan-3A Starter Kit,
- Spartan-3AN Starter Kit, and
- Spartan-3A DDR2 SDRAM Interface Development Kit.
Only the latter is promoted as supporting DDR2 @ 400 MHz, but the only difference listed between it and the Spartan-3A Starter Kit is the 133 MHz Crystal Oscillator and the lack of a 16 character, 2-Line LCD display.
Is there some special about that kit, or will they all run the memory @ 400 MHz given the right oscillator?