Version Found: MIG 7 Series v2.1
When simulating LPDDR2, the following errors might be observed:
These initialization errors are safe to ignore.
The "Nop or Deselect" errors are due to a simulation glitch where unknown X values are driven on several of the lines during initialization:
This causes the memory model to believe that CKE has gone high and then low again, which flags the error.
The tINIT3 violation is caused by the abbreviated initialization and calibration sequence used during simulation.
The JEDEC tINIT3 requirement is that the command bus must remain idle (NOP) for at least 200 us after CKE is asserted.
Because this wait period is skipped during the FAST version of initialization/calibration, the tINIT3 error above is given.
10/3/2014 - Initial Release