vhdl-association-list-with-formals

vhdl-association-list-with-formals is a variable defined in `vhdl-mode.el'.
Its value is

t

Documentation:
Non-nil means write association lists with formal parameters.
Templates prompt for formal and actual parameters (ports/generics).
When pasting component instantiations, formals are included.
If nil, only a list of actual parameters is entered.

You can customize this variable.