What is a module in Verilog?
In Verilog, a module is the basic building block used to design digital circuits. It defines a specific part of the hardware, such as an adder, multiplexer, or flip-flop, and describes its functionality, inputs, and outputs. Modules help designers break complex circuits into smaller, manageable sections. You can also reuse the same module multiple times in a design, making the code more organized and efficient. Modules in Verilog are written using the module and endmodule Keywords, making them easy to define and integrate into larger systems.
In Verilog, you can think of a module as a reusable building block in your design. It’s like a template that defines how a specific part of the design should work and how it’s organized. This lets you create different parts of a digital system at various levels of detail. Modules in Verilog can represent anything from simple components like basic gates to more complex systems. The great part is that you can connect these modules to build larger and more complex designs.
Verilog, developed in the early 1980s by Phil Moorby, quickly became one of the most popular Hardware Description Languages (HDLs) for modeling and simulating digital circuits. With Verilog, you’re able to describe the behavior and structure of digital systems at different levels of abstraction, allowing you to efficiently design and test even the most complex circuits.
In Verilog, a module represents a block of hardware that performs a specific function. It can be seen as a black box that takes in inputs, performs some operations, and produces outputs. Modules are reusable and can be instantiated multiple times within a design hierarchy.
