Article ID: 000083264 Content Type: Troubleshooting Last Reviewed: 12/10/2013
Why is the "Additional CK/CK# phase" option grayed out inside the MegaWizard GUI for the Stratix V device?
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Description The "Additional CK/CK# phase" option is grayed out in the MegaWizard™ GUI because custom phase shifts for the memory clock is not supported for that device and protocol. The Stratix® V and Arria® V GZ devices only support this option for UniPHY-based DDR2 memory controllers with a frequency of 150MHz or above.