ID:186325 Maximum of two groups allowed for DQS and DQ I/O pins referenced by different clocks

CAUSE: You assigned more groups of DQS I/O and DQ I/O pins than can be placed on the device. Due to physical limitations, there can be at most two DQS I/O and DQ I/O groups of pins referenced by different system clocks.

ACTION: Modify the design so that there are only two DQS I/O and DQ I/O groups of pins driven by different clocks.