Which Memory Timing information should be used in DDR4 EMIF IP for Stratix 10 if using a higher speed grade memory device at a lower speed - the higher speed grade or the lower speed grade?

Hi, I am setting up the DDR4 controller IP for a device which has a speed bin of 3200 MT/s. However, I would be using that device only for 2400 MT/s. While entering the timing parameters from the de...