Verilog Questions et reponses d'entretien
Question 16. What is the purpose of the 'always_comb' block in Verilog?
'always_comb' is used for combinational logic and automatically infers sensitivity to all inputs.
Example:
always_comb begin // Combinational logic... end
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Question 17. Explain the difference between 'task' and 'function' in Verilog.
'task' is used for procedural tasks with no return value, while 'function' is used for functions that return a single value.
Example:
task myTask; // Task definition... endtask function int add(int a, int b); // Function definition... endfunction
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Question 18. What is the purpose of the 'wire' data type in Verilog?
'wire' is used for connecting different modules and represents a net.
Example:
wire [7:0] bus;
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Question 19. Explain the 'parameter' keyword in the context of module instantiation.
'parameter' allows the specification of constant values during module instantiation, facilitating parameterized modules.
Example:
module myModule #(parameter WIDTH=8) (input [WIDTH-1:0] data); // Module definition... endmodule
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Question 20. What is the significance of the 'disable' keyword in Verilog?
'disable' is used to deactivate a named block, task, or function during runtime.
Example:
disable myTask; // Deactivates the task named 'myTask'
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