Component Declaration and Instantiation

• Component Declaration - Used to declare the Port types and the Data Types of the ports for a lower-level design.

COMPONENT <lower-level_design_name> IS

PORT ( <port_name> : <port_type> <data_type>

.

.

<port_name> : <port_type> <data_type>);

END COMPONENT;

• Component Instantiation - Used to map the ports of a lower-level design to that of the current-level design

<instance_name> : <lower-level_design_name>

PORT MAP(<lower-level_port_name> => <current_level_port_name>, …,<lower-level_port_name> => <current_level_port_name>);

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