Description
Due to a problem in the Quartus® II software version 10.0 and later, the MegaWizard™ Plug-In Manager does not allow you to change the address or data width for the ALTUFM_PARALLEL megafunction.
Resolution
To work around this problem, create the megafunction by running the command-line flow using qmegawiz. For details on running qmegawiz, refer to the chapter Command-Line Scripting (PDF) in the Quartus II Handbook. For details on the ALTUFM_PARALLEL ports and parameters, refer to altufm_parallel Megafunction in Quartus II Help.
This problem is scheduled to be fixed in a future release of the Quartus II software.