'Mealy machine' diaporamas de présentation

Specification Techniques and Formal Specifications

Specification Techniques and Formal Specifications. System models are abstract descriptions of systems whose requirements are being analysed. Objectives To explain why specification modelling techniques help discover problems in system requirements To describe

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Finite State Machine

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Chapter 8 -- Analysis and Synthesis of Synchronous Sequential Circuits

Chapter 8 -- Analysis and Synthesis of Synchronous Sequential Circuits. The Synchronous Sequential Circuit Model. Figure 8.1. Mealy Machine Model. Figure 8.2. Mealy Machine Timing Diagram -- Example 8.1. Figure 8.3. Moore Machine Model. Figure 8.4.

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Chapter #8: Finite State Machine Design

Chapter #8: Finite State Machine Design. Motivation. Counters: Sequential Circuits where State = Output Generalizes to Finite State Machines: Outputs are Function of State (and Inputs) Next States are Functions of State and Inputs

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Finite State Machines

Finite State Machines. Hakim Weatherspoon CS 3410 Computer Science Cornell University. [Weatherspoon, Bala , Bracy , McKee, and Sirer ]. Stateful Components. Combinationial logic Output computed directly from inputs System has no internal state Nothing depends on the past! Need:

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E-Services: In Search of the Fundamentals *

E-Services: In Search of the Fundamentals *. Rick Hull Michael Benedikt Bell Labs Research Lucent Technologies {hull,benedikt}@lucent.com. Jianwen Su U. of California, Santa Barbara su@cs.ucsb.edu. Vassilis Christophides Foundation for Research and Technology-Hellas (FORTH)

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Using Finite State Automata to Model Manufacturing Systems

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Sequential Logic

Sequential Logic. Lecture #9. ????. FlipFlop Active-high Clock & asynchronous Clear Active-low Clock & asynchronous Clear Active-high Clock & asynchronous Preset Active-high Clock & asynchronous Clear & Preset Latch Shift Register Counter 4 bits Universal Counter : 74161

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Analysis of Clocked Sequential Circuits

Analysis of Clocked Sequential Circuits. Example of a Sequential Circuit. D flip-flops. Example: Start with A=0, B=0, x=0. A(next)=0 B(next)=0 Y(next)=0. What are A(next), B(next) and y(next) given that A=1, B=1 and X=1?. D flip-flops. Alternate State Table. State Diagram.

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Lecture # 16

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3.1.1 Fundamentals of Problem Solving

AQA Computing COMP1. 3.1.1 Fundamentals of Problem Solving. Finite State Machines Denise Landau 2013. What is a Finite State Machine?.

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8.3 Alternative State Machine Representations

Chapter #8: Finite State Machine Design 8.3 Alternative State Machine Representations 8.4 Mealy and Moore Machines Design. 8.3 Alternative State Machine Representations. Why State Diagrams Are Not Enough. Not flexible enough for describing very complex finite state machines

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Analysis of Clocked Sequential Circuits

Analysis of Clocked Sequential Circuits. General Structure of a Mealy Machine. Output depends on input as well as the state t he circuit is in. (variable: state) Synchronize the input with clock when using Mealy machine. Moore Machine. Output depends on the state, but not the input.

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Introduction to VHDL for Moore Machine

Introduction to VHDL for Moore Machine. Teaching Assistants: Wenchao Cao, Yin Lei, Cale Nelson Department of EECS University of Tennessee. Moore Machine and Mealy Machine. Moore machine: Each node (state) is labeled with an output value. Mealy machine:

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Session 1: FPGA Hardware Synthesis - Synchronous Finite State Machines

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Vending Machine Using FSM

Vending Machine Using FSM. Aalapee Patel Seth Martin. Objective. Dispense the product and the change if there is any depending on the customer input in terms of the money and the selected product. Special Cases. Machine is out of money Customer enters wrong product code

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Example: Detect 3 Consecutive 1 inputs (Moore)

Example: Detect 3 Consecutive 1 inputs (Moore). 0. State S 0 : zero 1s detected State S 1 : one 1 detected State S 2 : two 1s detected State S 3 : three 1s detected. Note that each state has 2 output arrows Two bits needed to encode state. State Table for Sequence Detector. Present

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CSE 140L Discussion

CSE 140L Discussion. Finite State Machines. Finite State Machines. Two types: Mealy and Moore Mealy depends on both the current state and the input Moore depends only on the current state.

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Mealy Machines part 2

Mealy Machines part 2. Adder as a Mealy machine. Two states Alphabet is set of pairs Every transition emits an output character Emits the sum of the two numbers formed where each bit is paired together (least signifcant bits first) 0 01 + 111 uses input (1,1)(0,1),(0,1).

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Theory of Computation Sessional 1

Theory of Computation Sessional 1. What is deterministic finite automata and non deterministic finite automata. Write down the procedure to convert NFA into DFA ? What is finite state machine? Construct a mealy machine which is equivalent to the moore machine given by table: . Thank You.

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