# What is FSM in Verilog?

## What is FSM in Verilog?

Designing Finite State Machines (FSM) using Verilog By Harsha Perla. Designing a synchronous finite state machine (FSM) is a common task for a digital logic engineer. A finite state machine can be divided in to two types: Moore and Mealy state machines.

**How do you write a case statement in Verilog?**

A Verilog case statement starts with the case keyword and ends with the endcase keyword. The expression within parantheses will be evaluated exactly once and is compared with the list of alternatives in the order they are written and the statements for which the alternative matches the given expression are executed.

### Which Modelling is used in FSM coding?

INTRODUCTION The Finite State Machine (FSM) model is a model of choice to describe a sequential system who do not require parallelism in its evolution (even if it allows parallelism for its actions or parallelism of execution of multiple models).

**How do you make a 4 bit multiplier?**

The 4-bit multiplier is composed of three major parts: the control unit, the accumulator/shift register, and the 4-bit adder (Fig 1a). Multiplication is performed by first loading the 4-bit multiplicand into the adder and loading the 4-bit multiplier into the lower 4 flip-flops of the register.

## How do you calculate binary multiplication?

The binary multiplication is very much similar to the usual multiplication method of integers. First, we need to multiply each digit of one binary number to each digit of another binary number. And then add them all together to get the final result.

**What is FSM module?**

A finite-state machine (FSM) or finite-state automaton (FSA, plural: automata), finite automaton, or simply a state machine, is a mathematical model of computation. It is an abstract machine that can be in exactly one of a finite number of states at any given time.

### What is FSM full form?

FSM – Federated System Manager.

**How do you write a function in Verilog?**

A function definition always start with the keyword function followed by the return type, name and a port list enclosed in parantheses. Verilog knows that a function definition is over when it finds the endfunction keyword.

## What is Casex and casez in Verilog?

casez treats all z values in the case alternatives or the case expression as don’t cares. All bit positions with z can also represented by? in that position. casex treats all x and z values in the case item or the case expression as don’t. cares.

**How is FSM represented?**

A finite state machine (FSM) [71] is a mathematical model of computation usually represented as a graph, with a finite number of nodes describing the possible states of the system, and a finite number of arcs representing the transitions that do or do not change the state, respectively.

### What are the different types of FSM?

The finite state machines are classified into two types such as Mealy state machine and Moore state machine.