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Re: SDRAM interconnections on Blackfin

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Hi Sunil.

 

Your connections appear correct as is and do not require the proposed connection between A0 and /ABE3.  If you consult the BF561 EZ-KIT schematic, you can compare the devices we use there with the one you've selected:

 

http://www.analog.com/static/imported-files/eval_kit_manuals/ADSP-BF561_ezkit_man_rev.3.3.pdf

 

Note on page 75 the EBIU connections for this pair of MT48LC16M memories, which are 1/2 the density of yours at 4MB x 16 x 4 banks.  If you compare the datasheet for this memory device with the one you've selected (MT48LC32M16), you will note that the only place they differ in terms of the addressing scheme is that this device requires A9 for the extra column address, whereas the LC16 only needs up to A8.

 

-Joe


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