12-19-2014 07:28 AM
I have read ds176_7Series_MIS, it is mentioned Kintex-7 can interface DDR3L.
May question is the power rail for bank 33 and 34 must be +1.35V or could be +1.5V.
Please let me know thanks.
12-19-2014 07:36 AM - edited 12-19-2014 07:40 AM
By power rail do you mean VCCO or vref?
Both of them are based on IOstandards of the siganls used in respective banks
As DDR3L require *_SSTL_135 then VCCO should be 1.35V, please refer UG471 Table- VCCO and VREF Requirements for Each Supported I/O Standard for more details
Hope this helps
12-21-2014 10:31 PM
Ideally the voltage rails should be based on teh IO standards which you select. As mentioned, the SelectIO user guide should guide you on the VCCO, VREF requirements which be given for the various IO standards.
Check the datasheet for kintex-7 pg 8 for the Voh, Vol specs for the different IO standards. For the VCCO and Vref, recommended operating conditions, check pg 1.
12-22-2014 02:30 AM - edited 12-22-2014 02:31 AM
The following AR http://www.xilinx.com/support/answers/50549.html also has useful information with respect to some part of your query