Sumit,

Check out Application XAPP768c "Interfacing Spartan�3 Devices With 166 
MHz or 333 Mb/s DDR SDRAM Memories" which can be accessed after 
registering for it on:
http://www.xilinx.com/memory

Cheers,
Shalin-

do_not_reply_to_this_addr@yahoo.com wrote:
> Hi
> 
> In order to connect a DDR memory component (not the DIMM) to spartan-3
> 
> - Is it better to use DCI on spartan-3 pins ? If so is there an example
> ?
> - What sort of termination is required at the memory end.
> - Is there a reference schemetic ?
> 
> Thanks
> Sumit
> 

> Hi
>
> In order to connect a DDR memory component (not the DIMM) to spartan-3
>
> - Is it better to use DCI on spartan-3 pins ? If so is there an example
> ?
> - What sort of termination is required at the memory end.
> - Is there a reference schemetic ?
>
> Thanks
> Sumit
>


Read XAPP200. I've build my own controller on base of that in XAPP and it
works fairly well at 266 MHz.

Hi

In order to connect a DDR memory component (not the DIMM) to spartan-3

- Is it better to use DCI on spartan-3 pins ? If so is there an example
?
- What sort of termination is required at the memory end.
- Is there a reference schemetic ?

Thanks
Sumit