Description
If you choose un-buffered DIMM component in the DDR3 High Performance (HP) Controller IP or Altmemphy Megafunction, leveling is implemented in the design. If you select discrete device in the DDR3 HP controller IP, leveling is not implemented in the design.
If you want to implement leveling for multiple discrete devices on the board, open the Altmemphy or DDR3 HP controller Megawizard, click on "modify preset" and select "un-buffered DIMM" instead of discrete device in the preset page and generate the core.