I thought that system generator included a FIFO block with different input output widths. As I recall, the only tricky parts were ensuring that the overall input/output throughputs are commensurate (true for any FIFO, really) and, for cases with input 2x wider than output, ensuring that the input is “half-word swapped” appropriately so that the output stream is properly ordered.
Maybe I’m thinking of the dual port BRAM block that can easily be coerced to act as a FIFO? HTH (despite the lack of actionable details), Dave > On Apr 25, 2019, at 14:28, Jack Hickish <jackhick...@gmail.com> wrote: > > Hi Indrajit, > > I'm surprised that the Xilinx FIFO block doesn't give the option of > having ports of two different widths. However, if it doesn't, the > easiest thing to do might be to use a dual port RAM, which does allow > the two interfaces to have different widths. If you can explain a bit > more about what you're trying to achieve someone may already have a > solution (for example, lots of designs have logic to turn N-bit data > streams into 64-bit streams which can be used to feed the 10GbE > block). > > Cheers > Jack > >> On Thu, 25 Apr 2019 at 06:53, Indrajit Barve <indra...@iiap.res.in> wrote: >> >> Hello all, >> >> I would like to implement a FIFO with input port data type depth and width >> of 2048 X 32 and output port data type 1024 X 64. Basically looking a >> similar module like this >> https://www.xilinx.com/support/documentation/application_notes/xapp261.pdf . >> or how to implement / configure Data-Width Conversion for a FIFO on ROACH1 >> . >> >> Thanks >> Indrajit >> >> -- >> You received this message because you are subscribed to the Google Groups >> "casper@lists.berkeley.edu" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to casper+unsubscr...@lists.berkeley.edu. >> To post to this group, send email to casper@lists.berkeley.edu. > > -- > You received this message because you are subscribed to the Google Groups > "casper@lists.berkeley.edu" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to casper+unsubscr...@lists.berkeley.edu. > To post to this group, send email to casper@lists.berkeley.edu. -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To post to this group, send email to casper@lists.berkeley.edu.
