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VHDL Subprogram Declaration error at <location>: object class for formal parameter of function cannot be <name>

CAUSE: In a Subprogram Declaration at the specified location in a VHDL Design File (.vhd), you used the specified object class for a formal parameter of a function. However, the formal parameter must have an object class of CONSTANT, SIGNAL, or FILE.
ACTION: Change the mode of the formal parameter to CONSTANT, SIGNAL, or FILE.

See also:

Sections 2.1.1 of the IEEE Std 1076-1993 IEEE Standard VHDL Language Reference Manual

- PLDWorld -

 
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