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Entity Generics Question

dohzer dohzer is offline
Junior Member
Join Date: Aug 2009
Posts: 1
I'm declaring the following interface and getting the following error:

entity entity_a is
		SIG_A_WIDTH 		: integer := 16;
		SIG_B_WIDTH 		: integer := 2;
		SIG_C_WIDTH		: integer := SIG_WIDTH_A - SIG_WIDTH_B;

end entity_a;
Object 'sig_a_width' cannot be used within the same interface as it is declared
I want to be able to define "SIG_C_WIDTH" as a function of the other two widths, so is there an easier and/or more correct way to do it? Should I be declaring it in a separate package or somewhere else in the code?
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