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fogl
Explorer
Explorer
8,461 Views
Registered: ‎02-04-2013

floorplan of the same device with differenc pin count

Hello everybody,

 

I was wondering if there is any difference in the internal structure of two same fpga device with with different package - is there any difference between spartan6slx-fgg484 and spartan6slx-ftg256?

 

Best Regards

Klemen

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1 Reply
gszakacs
Instructor
Instructor
8,454 Views
Registered: ‎08-14-2007

You could actually check this in the FPGA editor, but no.  There's no difference in the internals.  However you don't necessarily get the same IOBs bonded out.  i.e. just because a certain IOB (using the X Y location) is bonded out in the smaller package doesn't mean it will also bond out in the larger one.  In addition, the ID code for the two devices will be different, so you couldn't just program one using a bitstream from the other.

-- Gabor