When verifying a custom pinout using the Fixed Pin Out mode or "Verify Pin Changes and Update Design" mode, the following error message is displayed:
ERROR : The port "rldii_dm" is not aligned with its strobe pair "rldii_qk_p" and "rldii_qk_n"Mask component ports should be allocated either in the same bank or above or below bank.
This is a false error message as Data Mask (DM) does not have an alignment requirement with QK/QK#.
However, this does indicate a pin out violation with DM elsewhere.
To work around the DM violation make sure that all of the DM pin out requirements are being met:
Data Mask (DM) must be placed with one of the corresponding data byte lanes it is associated with.
For the x18 device, DM corresponds to DQ[8:0] and DM to DQ[17:9], while for the x36 device, DM corresponds to DQ[8:0]/DQ[26:18] and DM to DQ[17:9]/DQ[35/27].
04/03/2013 - Initial Release
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