StratixII DSP Dev. Kit (SDRAM)

Question about SDRAM on Stratix II DSP Dev. Kit.

In component library of SOPC 5.0, one preset SDRAM core is available:

single MT48LC4M32B2-7

Physically on board SDRAM are two (U39 & U40).

Does it mean I can't use the two SDRAM (32MB) together as a single continous SDRAM?

Thanks!