ID:10598 VHDL Interface Declaration error at <location>: formal variable parameter "<name>" of mode "<text>" in Interface Variable Declaration cannot have default expression

CAUSE: In an Interface Variable Declaration at the specified location in a VHDL Design File (.vhd), you used a default expression for the specified formal variable parameter of the specified mode. However, only a formal variable parameter of mode IN can have a default expression.

ACTION: Remove the default expression, or change the mode of the formal variable parameter to IN.