2.2.2. VHDL Basic Structure

Try these first

1. 1.

   What does the Entity in VHDL define?

   Hint

   Think about what signals the circuit will need to interact.

2. 2.

   Explain what an Architecture does in a VHDL program.

   Hint

   Recall the connection between inputs and outputs.

3. 3.

   What does an Entity define in VHDL?

   • The internal workings of the circuit
   • Input and output ports
   • The configuration of the circuit

   Hint

   Consider what signals interact with the circuit.

4. 4.

   True or False: The Configuration part is mandatory in VHDL programs.

   • True
   • False

   Hint

   Think about whether all parts are necessary for every program.

5. 5.

   Design a VHDL program for a simple OR gate, including its Entity and Architecture.

   Hint

   Follow the same structure as the AND gate example but use OR logic.

6. 6.

   Discuss how the structure of VHDL supports modular design. Provide an illustrative example.

   Hint

   Think about how different parts can function together while remaining distinct.