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AR# 50696

MIG 7 Series - Unable to run the memory clock frequency at 533 MHz using a 200 MHz input clock

Description

Version Found: v1.4
Version Resolved and other Known Issues: See (Xilinx Answer 45195).

MIG 7 series GUI would not allow users to run their memory clock frequency at 533 MHz using a 200 MHz input clock even though this does not violate any of the input clocking guidelines defined in (Xilinx Answer 40603).

Solution

This should be possible and can be done by manually setting the following PLL parameters:

CLKFBOUT_MULT_F (M) =16
DIVCLK_DIVIDE (D) =3
CLKOUT_DIVIDE (O) =2

Revision History
7/25/2012 - Initial release of AR
AR# 50696
Date Created 07/11/2012
Last Updated 10/11/2012
Status Active
Type Known Issues
Devices
  • Virtex-7
  • Kintex-7
  • Artix-7
IP
  • MIG 7 Series