Help for SOPC Builder - simple DDR2 design

hello

Please I'd like to have some help about sopc builder:

I'd like to design a simple program in order to test DDR2:

So I use a Clocked video input, a frame buffer, a clock crossing bridge, DDR2 high perf controller, and clocked video output (please see attached

printscreen of sopc).

The goal is only to store video data in the DDR2, and to read it again...

Is it possible to do this with the modules mentionned above?

Or do I have to use a microcontroller in this sopc design? (Does the sopc manages itself the read and write in DDR2?...)