Quartus

Can't pack non-peripheral register <name> to I/O pin <name> -- register has a conflicting logic cell assignment


CAUSE: You assigned the specified register, for which you used the Assignment Organizer to turn on the Fast Input Register or Fast Output Register option, to a logic cell that prevents the Compiler from packing the register to the specified I/O pin.
ACTION: Change or remove the logic cell assignment or change the clique assignment for the register or turn off the Fast Input Register or Fast Output Register option for the register.

See also:

Changing Assignments
Deleting Assignments
Working with Assignments in the Floorplan EditorAssigning Cliques to an Entity or Node

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