dynamic termination control

Hello All,

I m using quartus 11.I have added "ddr2_sdram" in qsys .System generation got the success.But in quartus compilation-fitter,there is one strange error i m getting:

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"I/O ddr2_deva_mem_dq" has dynamic termination control connected,but does not use parallel termination"

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I have no idea regarding this error.What does this mean?

If any idea about the solution,kindly tell me