This Excel-Sheet will help to calculate the correct SDR-/DDR1-/DDR2-SDRAM Controller settings for the Blackfin processors External Bus Interface Unit (EBIU), as well as for the DDR2-SDRAM controller (DMC) for the latest generation Blackfin processors.

In any case, refer to the SDRAM data sheet and the Hardware Reference Manual of you Blackfin processor derivative. Additionally, there are are few comments inside the document which should be read as well.