Architecture

Architecture

This construct is used to define the functionality of the model. In this section, the relations between the ports defined in entity.

Syntax:

architecture  architecture_name  of  entity_name  is
   declarations (signal declarations, component declarations, etc...)
   begin
       architecture_body
end architecture_names  ;

Example:

architecture Behavioral of AND_GATE is
    signal C : std_logic;
    begin
        C  <= A AND B;
    end Behavioral;

Each architecture must be declared in an entity. An entity can contain more than one architecture. All expressions defined in an architecture are processed in parallel.