ENGG 1203 Tutorial. D Flip Flop. D Flip Flop. Q changes when CLK is in Rising edge PGT NGT
|
|
- Nancy Sanders
- 5 years ago
- Views:
Transcription
1 ENGG 1203 Tutorial D Flip Flop Sequential Logic 14/21 Feb Learning Objectives Design circuits with Flip Flop Design a finite state machine News Feb 27, 2014, 11:55pm Ack.: HKU ELEC1008, ISU CprE 281x, PSU CMPEN270, Wikipedia Q changes when CLK is in Rising edge PGT CLK D Flip Flop Q1 NGT CLK 1 0 Remember to consider whether the FF is PGT or NGT Design a synchronous, recycling MOD-8 binary down counter with D FFs. Down counter: Counting in descending order MOD-8: Count from
2 Q2 K-map Fig. (a): A complete 4bit parallel adder with registers Fig. (b): Signals for addition For 1001 add 0101, describe what happen at t1, t2, t3, t4 and t5. Assume Co=0 5 6 At time t1, ݎ is active low FF at the bottom will be cleared 7 At time t2, load is active high Set A numbers will be loaded into the upper register 8
3 At time t 4, the load is active high, the set B numbers will be loaded into register B on PGT of LOAD pulse B 3 B 2 B 1 B 0 = 0101 At time t 3, transfer is active high Adder process between A 3 A 2 A 1 A 0 and B 3 B 2 B 1 B 0 The sum S 3 S 2 S 1 S 0 = 1001 are transferred to register A on PGT due to this transfer pulse at t At time t 5, A 3 A 2 A 1 A 0 = 1001 and B 3 B 2 B 1 B 0 = 0101, the adder produces S 3 S 2 S 1 S 0 = This sum is transferred into register A when TRANSFER pulse occur at t 5. Finite State Machine (FSM) State transition diagram Truth table K-Map Circuit FPGA State Present state: before the register Next state: after the register State transition: during clock 2 n states: n FFs 11 12
4 Q3 Mealy From state transition diagram to truth table Four states Two-bit state q/q*: Present/Next state z: Output Moore Condition/Output From truth table to K-map From K-map to circuit State register Logic for state transition Logic for output A B D A D B D A D B 15 16
5 Q4 Design a 2-bit counter with input x that can be A down counter when x = 0 ( ) A Johnson counter when x = 1 ( ) Q5 When interfacing an external signal into the FPGA, it is possible that the internal digital signal may bounce between 1 and 0 when the external voltage is very close to the threshold voltage. To solve this problem, a digital debounce circuit can be used. A simple debounce circuit operates as follows: If the output is 0", it is changed to 1" only after two consecutive 1"s have been present in the input. If the output is 1", it is changed to 0 only after two consecutive 0 s have been present in the input. The debounce logic is implemented as a state machine with the following states: Draw a state transition diagram. Input is din; Output is dout. Output of the state machine (dout) should be specified within the state as it is a Moore machine. Express the output dout in terms of s1 and s
6 Q6 Next state of OUT 0 din=0 OUT0 din=1 SEEN1 First 1 Next state of SEEN1 din=0 OUT0 din=1 OUT1 Two consecutive 1"s dout = s0 s1 Design a FSM for the dimmer control The controller starts with display being turned off. The display turns on when the user has pressed the power button once. If the power button is pressed again, regardless of whether is in full or half brightness, the screen turns off When the screen is on, if a user has not touched the screen for more than 3 cycles, the screen should be dimmed to half the normal brightness. If it is idled for another 3 cycles, it should turn off automatically. However, if the user touch the screen at any time when it is dimmed, it should go back to full brightness immediately
7 The controller starts with display being turned off. The display turns on when the user has pressed the power button once. If the power button is pressed again, regardless of whether is in full or half brightness, the screen turns off. --- When the screen is on, if a user has not touched the screen for more than 3 cycles, the screen should be dimmed to half the normal brightness. --- If it is idled for another 3 cycles, it should turn off automatically However, if the user touch the screen at any time when it is dimmed, it should go back to full brightness immediately. Q7 Design a FSM for a vending machine Collect money, deliver product and change Vending machine may get three inputs Inputs are nickel (5c), dime (10c), and quarter (25c) Only one coin input at a time Product cost is 40c Does not accept more than 50c Returns 5c or 10c back Exact change appreciated 27 28
8 We are designing a state machine which output depends on both current state and inputs. Suppose we ask the machine to directly return the coin if it cannot accept an input coin. Input specification: I 1 I 2 Represent the coin inserted Input: We can insert 0 cents (00), 5 cents (01), 10 cents (10), 25 cents (11) Output specification: C 1 C 2 P C 1 C 2 represent the coin returned 00, 01, 10, 11 P indicates whether to deliver product 0, 1 States: S 1 S 2 S 3 Represent the money inside the machine now 3 bits are enough to encode the states S00 (0 cents) 000 S05 (5 cents) 001 S10 010; ; S Consider all situations (S00, S05,, S35) SS machine Truth table K-Map Circuit FPGA After considering all states S35: Currently the machine stores 35 cents If we insert 0 cents 00/000 Next state is S35 (The state repeats itself) If we insert 25 cents 11/110 Next state is S35 + Return 1 quarter + Return 0 product 35c (35 cents inside the machine) + 25c (Insert 25 cents) = 35c (35 cents inside the machine) + 25c (return 25 cents) + 0c (return no product) S35 00/000 11/
9 If we insert 10 cents 10/011 Next state is S0 + Return 1 nickel + Return 1 product 35c (35 cents inside the machine) + 10c (Insert 10 cents) = 0c (0 cents inside the machine) + 5c (return 5 cents) + 40c (return 1 product) If we insert 5 cents 01/001 Next state is S0 + Return 0 nickel + Return 1 product 35c (35 cents inside the machine) + 5c (Insert 5 cents) = 0c (0 cents inside the machine) + 0c (return 0 cents) + 40c (return 1 product) S35 10/011 01/001 (Appendix) Q8 The card reader tells the controller whether the car is a member or a guest car. Only one guest car is allowed per member at a discount rate Only when the guest follows out the member at the exit (within the allotted time) The second guest must pay the regular parking fees Design a FSM for the card reader Specifications Signals from the card reader: MEMBER, GUEST Signals from the toll booth TOKEN ( One toke received ) EXP ( Time for discounted guest payment has expired ) Signal to the gate: OPEN Fee Members: Free Guest with a Member: 1 Token Regular Guest: 2 Tokens. List out all situations through a truth table e.g. Idle Idle / Guest enters / Member enters X : Illegal/Not considered 35 36
10 Then, Truth Table K-map Circuit (Appendix) A typical FSM FSM Truth table Circuit State register (Appendix) Steps in designing a state machine Draw a state transition diagram An initial state Other states to keep track of various activities Transitions Generate a state transition table and a output table Write state transition table and output table in binary State assignment, i.e., the code used for each state Derive canonical sum-of-product expressions Draw the circuit Logic for state transition Logic for 39 output 40
Chapter Contents. Appendix A: Digital Logic. Some Definitions
A- Appendix A - Digital Logic A-2 Appendix A - Digital Logic Chapter Contents Principles of Computer Architecture Miles Murdocca and Vincent Heuring Appendix A: Digital Logic A. Introduction A.2 Combinational
More informationEET2411 DIGITAL ELECTRONICS
5-8 Clocked D Flip-FlopFlop One data input. The output changes to the value of the input at either the positive going or negative going clock trigger. May be implemented with a J-K FF by tying the J input
More informationPrinciples of Computer Architecture. Appendix A: Digital Logic
A-1 Appendix A - Digital Logic Principles of Computer Architecture Miles Murdocca and Vincent Heuring Appendix A: Digital Logic A-2 Appendix A - Digital Logic Chapter Contents A.1 Introduction A.2 Combinational
More informationAsynchronous (Ripple) Counters
Circuits for counting events are frequently used in computers and other digital systems. Since a counter circuit must remember its past states, it has to possess memory. The chapter about flip-flops introduced
More informationComputer Architecture and Organization
A-1 Appendix A - Digital Logic Computer Architecture and Organization Miles Murdocca and Vincent Heuring Appendix A Digital Logic A-2 Appendix A - Digital Logic Chapter Contents A.1 Introduction A.2 Combinational
More informationWEEK 10. Sequential Circuits: Analysis and Design. Page 1
WEEK 10 Sequential Circuits: Analysis and Design Page 1 Analysis of Clocked (Synchronous) Sequential Circuits Now that we have flip-flops and the concept of memory in our circuit, we might want to determine
More informationLecture 11: Synchronous Sequential Logic
Lecture 11: Synchronous Sequential Logic Syed M. Mahmud, Ph.D ECE Department Wayne State University Aby K George, ECE Department, Wayne State University Contents Characteristic equations Analysis of clocked
More informationproblem maximum score 1 28pts 2 10pts 3 10pts 4 15pts 5 14pts 6 12pts 7 11pts total 100pts
University of California at Berkeley College of Engineering Department of Electrical Engineering and Computer Sciences EECS150 J. Wawrzynek Spring 2002 4/5/02 Midterm Exam II Name: Solutions ID number:
More informationCounter dan Register
Counter dan Register Introduction Circuits for counting events are frequently used in computers and other digital systems. Since a counter circuit must remember its past states, it has to possess memory.
More informationRegisters and Counters
Registers and Counters Clocked sequential circuit = F/Fs and combinational gates Register Group of flip-flops (share a common clock and capable of storing one bit of information) Consist of a group of
More informationCHAPTER 6 COUNTERS & REGISTERS
CHAPTER 6 COUNTERS & REGISTERS 6.1 Asynchronous Counter 6.2 Synchronous Counter 6.3 State Machine 6.4 Basic Shift Register 6.5 Serial In/Serial Out Shift Register 6.6 Serial In/Parallel Out Shift Register
More informationEECS150 - Digital Design Lecture 19 - Finite State Machines Revisited
EECS150 - Digital Design Lecture 19 - Finite State Machines Revisited April 2, 2013 John Wawrzynek Spring 2013 EECS150 - Lec19-fsm Page 1 Finite State Machines (FSMs) FSM circuits are a type of sequential
More informationUniversidad Carlos III de Madrid Digital Electronics Exercises
1. Complete the chronogram for the circuit given in the figure. inst7 NOT A INPUT VCC AND2 inst5 DFF D PRN Q CLRN inst XOR inst2 TFF PRN T Q CLRN inst8 OUTPUT OUTPUT Q Q1 CLK INPUT VCC CLEARN INPUT VCC
More information1. a) For the circuit shown in figure 1.1, draw a truth table showing the output Q for all combinations of inputs A, B and C. [4] Figure 1.
[Question 1 is compulsory] 1. a) For the circuit shown in figure 1.1, draw a truth table showing the output Q for all combinations of inputs A, B and C. Figure 1.1 b) Minimize the following Boolean functions:
More informationECE 263 Digital Systems, Fall 2015
ECE 263 Digital Systems, Fall 2015 REVIEW: FINALS MEMORY ROM, PROM, EPROM, EEPROM, FLASH RAM, DRAM, SRAM Design of a memory cell 1. Draw circuits and write 2 differences and 2 similarities between DRAM
More informationELCT201: DIGITAL LOGIC DESIGN
ELCT201: DIGITAL LOGIC DESIGN Dr. Eng. Haitham Omran, haitham.omran@guc.edu.eg Dr. Eng. Wassim Alexan, wassim.joseph@guc.edu.eg Lecture 8 Following the slides of Dr. Ahmed H. Madian محرم 1439 ه Winter
More information1. Convert the decimal number to binary, octal, and hexadecimal.
1. Convert the decimal number 435.64 to binary, octal, and hexadecimal. 2. Part A. Convert the circuit below into NAND gates. Insert or remove inverters as necessary. Part B. What is the propagation delay
More informationObjectives. Combinational logics Sequential logics Finite state machine Arithmetic circuits Datapath
Objectives Combinational logics Sequential logics Finite state machine Arithmetic circuits Datapath In the previous chapters we have studied how to develop a specification from a given application, and
More informationFlip-Flops and Related Devices. Wen-Hung Liao, Ph.D. 4/11/2001
Flip-Flops and Related Devices Wen-Hung Liao, Ph.D. 4/11/2001 Objectives Recognize the various IEEE/ANSI flip-flop symbols. Use state transition diagrams to describe counter operation. Use flip-flops in
More informationRegisters & Counters. Logic and Digital System Design - CS 303 Erkay Savaş Sabanci University
Registers & ounters Logic and igital System esign - S 33 Erkay Savaş Sabanci University Registers Registers like counters are clocked sequential circuits A register is a group of flip-flops Each flip-flop
More informationIntroduction. NAND Gate Latch. Digital Logic Design 1 FLIP-FLOP. Digital Logic Design 1
2007 Introduction BK TP.HCM FLIP-FLOP So far we have seen Combinational Logic The output(s) depends only on the current values of the input variables Here we will look at Sequential Logic circuits The
More informationWe are here. Assembly Language. Processors Arithmetic Logic Units. Finite State Machines. Circuits Gates. Transistors
CSC258 Week 5 1 We are here Assembly Language Processors Arithmetic Logic Units Devices Finite State Machines Flip-flops Circuits Gates Transistors 2 Circuits using flip-flops Now that we know about flip-flops
More informationChapter 5 Synchronous Sequential Logic
Chapter 5 Synchronous Sequential Logic Chih-Tsun Huang ( 黃稚存 ) http://nthucad.cs.nthu.edu.tw/~cthuang/ Department of Computer Science National Tsing Hua University Outline Introduction Storage Elements:
More informationFigure 30.1a Timing diagram of the divide by 60 minutes/seconds counter
Digital Clock The timing diagram figure 30.1a shows the time interval t 6 to t 11 and t 19 to t 21. At time interval t 9 the units counter counts to 1001 (9) which is the terminal count of the 74x160 decade
More informationChapter 6 Digital Circuit 6-5 Department of Mechanical Engineering
MEMS1082 Chapter 6 Digital Circuit 6-5 General digital system D Flip-Flops, The D flip-flop is a modification of the clocked SR flip-flop. The D input goes directly into the S input and the complement
More informationECE 172 Digital Systems. Chapter 2.2 Review: Ring Counter, Johnson Counter. Herbert G. Mayer, PSU Status 7/14/2018
ECE 172 Digital Systems Chapter 2.2 Review: Ring Counter, Johnson Counter Herbert G. Mayer, PSU Status 7/14/2018 1 Syllabus l Ring Counter l Parallel Output Ring Counter l Ring Counter via D Flip-Flops
More informationChapter 7 Counters and Registers
Chapter 7 Counters and Registers Chapter 7 Objectives Selected areas covered in this chapter: Operation & characteristics of synchronous and asynchronous counters. Analyzing and evaluating various types
More informationLecture 12. Amirali Baniasadi
CENG 24 Digital Design Lecture 2 Amirali Baniasadi amirali@ece.uvic.ca This Lecture Chapter 6: Registers and Counters 2 Registers Sequential circuits are classified based in their function, e.g., registers.
More informationCS3350B Computer Architecture Winter 2015
CS3350B Computer Architecture Winter 2015 Lecture 5.2: State Circuits: Circuits that Remember Marc Moreno Maza www.csd.uwo.ca/courses/cs3350b [Adapted from lectures on Computer Organization and Design,
More informationExperiment 8 Introduction to Latches and Flip-Flops and registers
Experiment 8 Introduction to Latches and Flip-Flops and registers Introduction: The logic circuits that have been used until now were combinational logic circuits since the output of the device depends
More informationLogic Design. Flip Flops, Registers and Counters
Logic Design Flip Flops, Registers and Counters Introduction Combinational circuits: value of each output depends only on the values of inputs Sequential Circuits: values of outputs depend on inputs and
More informationVending Machine. Keywords FSM, Vending Machine, FPGA, VHDL
Vending Machine Khodur Dbouk, Basil Jajou, Kouder Abbas, Stevan Nissan Electrical and Computer Engineering Department School of Engineering and Computer Science Oakland University, Rochester, MI kdbouk@oakland.edu,
More informationRegisters and Counters
Registers and Counters Clocked sequential circuit = F/Fs and combinational gates Register Group of flip-flops (share a common clock and capable of storing one bit of information) Consist of a group of
More informationDigital Fundamentals: A Systems Approach
Digital Fundamentals: A Systems Approach Counters Chapter 8 A System: Digital Clock Digital Clock: Counter Logic Diagram Digital Clock: Hours Counter & Decoders Finite State Machines Moore machine: One
More informationChapter 6. Flip-Flops and Simple Flip-Flop Applications
Chapter 6 Flip-Flops and Simple Flip-Flop Applications Basic bistable element It is a circuit having two stable conditions (states). It can be used to store binary symbols. J. C. Huang, 2004 Digital Logic
More informationLogic and Computer Design Fundamentals. Chapter 7. Registers and Counters
Logic and Computer Design Fundamentals Chapter 7 Registers and Counters Registers Register a collection of binary storage elements In theory, a register is sequential logic which can be defined by a state
More informationCHAPTER 4: Logic Circuits
CHAPTER 4: Logic Circuits II. Sequential Circuits Combinational circuits o The outputs depend only on the current input values o It uses only logic gates, decoders, multiplexers, ALUs Sequential circuits
More informationIntroduction to Computer Engineering EECS dickrp/eecs203/
Introduction to Computer Engineering EECS 203 http://ziyang.eecs.northwestern.edu/ dickrp/eecs203/ Instructor: Robert Dick Office: L477 Tech Email: dickrp@northwestern.edu Phone: 847 467 2298 TA: Neal
More informationDigital Logic Design I
Digital Logic Design I Synchronous Sequential Logic Mustafa Kemal Uyguroğlu Sequential Circuits Asynchronous Inputs Combinational Circuit Memory Elements Outputs Synchronous Inputs Combinational Circuit
More informationSequential Logic Circuits
Sequential Logic Circuits By Dr. M. Hebaishy Digital Logic Design Ch- Rem.!) Types of Logic Circuits Combinational Logic Memoryless Outputs determined by current values of inputs Sequential Logic Has memory
More informationCHAPTER 4: Logic Circuits
CHAPTER 4: Logic Circuits II. Sequential Circuits Combinational circuits o The outputs depend only on the current input values o It uses only logic gates, decoders, multiplexers, ALUs Sequential circuits
More informationContents Circuits... 1
Contents Circuits... 1 Categories of Circuits... 1 Description of the operations of circuits... 2 Classification of Combinational Logic... 2 1. Adder... 3 2. Decoder:... 3 Memory Address Decoder... 5 Encoder...
More informationECE 331 Digital System Design
ECE 331 Digital System Design Counters (Lecture #20) The slides included herein were taken from the materials accompanying Fundamentals of Logic Design, 6 th Edition, by Roth and Kinney, and were used
More informationECE 301 Digital Electronics
ECE 301 Digital Electronics Counters (Lecture #20) The slides included herein were taken from the materials accompanying Fundamentals of Logic Design, 6 th Edition, by Roth and Kinney, and were used with
More informationLogic Design ( Part 3) Sequential Logic- Finite State Machines (Chapter 3)
Logic esign ( Part ) Sequential Logic- Finite State Machines (Chapter ) Based on slides McGraw-Hill Additional material 00/00/006 Lewis/Martin Additional material 008 Roth Additional material 00 Taylor
More informationINC 253 Digital and electronics laboratory I
INC 253 Digital and electronics laboratory I Laboratory 9 Sequential Circuit Author: ID Co-Authors: 1. ID 2. ID 3. ID Experiment Date: Report received Date: Comments For Instructor Full Marks Pre lab 10
More informationUniversal Asynchronous Receiver- Transmitter (UART)
Universal Asynchronous Receiver- Transmitter (UART) (UART) Block Diagram Four-Bit Bidirectional Shift Register Shift Register Counters Shift registers can form useful counters by recirculating a pattern
More informationThe NOR latch is similar to the NAND latch
5-2 NOR Gate Latch The NOR latch is similar to the NAND latch except that the Q and Q outputs are reversed. The set and clear inputs are active high, that is, the output will change when the input is pulsed
More informationCS61C : Machine Structures
inst.eecs.berkeley.edu/~cs61c CS61C : Machine Structures Lecture #21 State Elements: Circuits that Remember 2008-3-14 Scott Beamer, Guest Lecturer www.piday.org 3.14159265358979323 8462643383279502884
More informationSequential Digital Design. Laboratory Manual. Experiment #7. Counters
The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Spring 2018 ECOM 2022 Khaleel I. Shaheen Sequential Digital Design Laboratory Manual Experiment #7 Counters Objectives
More informationUNIVERSITI TEKNOLOGI MALAYSIA
SULIT Faculty of Computing UNIVERSITI TEKNOLOGI MALAYSIA FINAL EXAMINATION SEMESTER I, 2016 / 2017 SUBJECT CODE : SUBJECT NAME : SECTION : TIME : DATE/DAY : VENUES : INSTRUCTIONS : Answer all questions
More informationExperiment # 12. Traffic Light Controller
Experiment # 12 Traffic Light Controller Objectives Practice on the design of clocked sequential circuits. Applications of sequential circuits. Overview In this lab you are going to develop a Finite State
More informationRegisters and Counters
Registers and Counters ( 范倫達 ), Ph. D. Department of Computer Science National Chiao Tung University Taiwan, R.O.C. Fall, 2011 ldvan@cs.nctu.edu.tw http://www.cs.nctu.edu.tw/~ldvan/ Registers Shift Registers
More informationLogic Design II (17.342) Spring Lecture Outline
Logic Design II (17.342) Spring 2012 Lecture Outline Class # 05 February 23, 2012 Dohn Bowden 1 Today s Lecture Analysis of Clocked Sequential Circuits Chapter 13 2 Course Admin 3 Administrative Admin
More informationSolution to Digital Logic )What is the magnitude comparator? Design a logic circuit for 4 bit magnitude comparator and explain it,
Solution to Digital Logic -2067 Solution to digital logic 2067 1.)What is the magnitude comparator? Design a logic circuit for 4 bit magnitude comparator and explain it, A Magnitude comparator is a combinational
More information1.b. Realize a 5-input NOR function using 2-input NOR gates only.
. [3 points] Short Questions.a. Prove or disprove that the operators (,XOR) form a complete set. Remember that the operator ( ) is implication such that: A B A B.b. Realize a 5-input NOR function using
More informationStep 1 - shaft decoder to generate clockwise/anticlockwise signals
Workshop Two Shaft Position Encoder Introduction Some industrial automation applications require control systems which know the rotational position of a shaft. Similar devices are also used for digital
More informationLaboratory Exercise 7
Laboratory Exercise 7 Finite State Machines This is an exercise in using finite state machines. Part I We wish to implement a finite state machine (FSM) that recognizes two specific sequences of applied
More informationCounters
Counters A counter is the most versatile and useful subsystems in the digital system. A counter driven by a clock can be used to count the number of clock cycles. Since clock pulses occur at known intervals,
More informationEECS150 - Digital Design Lecture 15 Finite State Machines. Announcements
EECS150 - Digital Design Lecture 15 Finite State Machines October 18, 2011 Elad Alon Electrical Engineering and Computer Sciences University of California, Berkeley http://www-inst.eecs.berkeley.edu/~cs150
More informationMore on Flip-Flops Digital Design and Computer Architecture: ARM Edition 2015 Chapter 3 <98> 98
More on Flip-Flops Digital Design and Computer Architecture: ARM Edition 2015 Chapter 3 98 Review: Bit Storage SR latch S (set) Q R (reset) Level-sensitive SR latch S S1 C R R1 Q D C S R D latch Q
More informationMicroprocessor Design
Microprocessor Design Principles and Practices With VHDL Enoch O. Hwang Brooks / Cole 2004 To my wife and children Windy, Jonathan and Michelle Contents 1. Designing a Microprocessor... 2 1.1 Overview
More informationMODU LE DAY. Class-A, B, AB and C amplifiers - basic concepts, power, efficiency Basic concepts of Feedback and Oscillation. Day 1
DAY MODU LE TOPIC QUESTIONS Day 1 Day 2 Day 3 Day 4 I Class-A, B, AB and C amplifiers - basic concepts, power, efficiency Basic concepts of Feedback and Oscillation Phase Shift Wein Bridge oscillators.
More informationSwitching Circuits & Logic Design, Fall Final Examination (1/13/2012, 3:30pm~5:20pm)
Switching Circuits & Logic Design, Fall 2011 Final Examination (1/13/2012, 3:30pm~5:20pm) Problem 1: (15 points) Consider a new FF with three inputs, S, R, and T. No more than one of these inputs can be
More information# "$ $ # %!"$!# &!'$("!)!"! $ # *!"! $ '!!$ #!!)! $ "# ' "
!" #!""! # "$ $ # %!"$!# &!'$("!)!"! $ # *!"! $ '!!$ #!!)! $ "# ' " % &! # Design a combinational logic circuit 10:4 encoder which has a 10-bit input (D9 to D0) and a 4-bit output. If bit position i of
More informationChapter 5. Introduction
Chapter 5 Synchronous Sequential Logic Chapter 5 Introduction Circuits require memory to store intermediate data Sequential circuits use a periodic signal to determine when to store values. A clock signal
More informationCprE 281: Digital Logic
CprE 28: Digital Logic Instructor: Alexander Stoytchev http://www.ece.iastate.edu/~alexs/classes/ Registers and Counters CprE 28: Digital Logic Iowa State University, Ames, IA Copyright Alexander Stoytchev
More informationFPGA Implementation of Sequential Logic
ECE 428 Programmable ASIC Design FPGA Implementation of Sequential Logic Haibo Wang ECE Department Southern Illinois University Carbondale, IL 62901 8-1 Sequential Circuit Model Combinational Circuit:
More informationLogic Design II (17.342) Spring Lecture Outline
Logic Design II (17.342) Spring 2012 Lecture Outline Class # 03 February 09, 2012 Dohn Bowden 1 Today s Lecture Registers and Counters Chapter 12 2 Course Admin 3 Administrative Admin for tonight Syllabus
More informationEE292: Fundamentals of ECE
EE292: Fundamentals of ECE Fall 2012 TTh 10:00-11:15 SEB 1242 Lecture 23 121120 http://www.ee.unlv.edu/~b1morris/ee292/ 2 Outline Review Combinatorial Logic Sequential Logic 3 Combinatorial Logic Circuits
More informationCSE Latches and Flip-flops Dr. Izadi. NOR gate property: A B Z Cross coupled NOR gates: S M S R Q M
CSE-4523 Latches and Flip-flops Dr. Izadi NOR gate property: A B Z A B Z Cross coupled NOR gates: S M S R M R S M R S R S R M S S M R R S ' Gate R Gate S R S G R S R (t+) S G R Flip_flops:. S-R flip-flop
More informationBISHOP ANSTEY HIGH SCHOOL & TRINITY COLLEGE EAST SIXTH FORM CXC CAPE PHYSICS, UNIT 2 Ms. S. S. CALBIO NOTES lesson #39
BISHOP ANSTEY HIGH SCHOOL & TRINITY COLLEGE EAST SIXTH FORM CXC CAPE PHYSICS, UNIT 2 Ms. S. S. CALBIO NOTES lesson #39 Objectives: Students should be able to Thursday 21 st January 2016 @ 10:45 am Module
More informationFall 2000 Chapter 5 Part 1
ECE/CS 352 Digital Systems Fundamentals Fall 2000 Chapter 5 Part 1 Tom Kaminski & Charles R. Kime ECE/CS 352 Digital System Fundamentals T. Kaminski & C. Kime 1 Registers A register is a collection of
More informationCHAPTER1: Digital Logic Circuits
CS224: Computer Organization S.KHABET CHAPTER1: Digital Logic Circuits 1 Sequential Circuits Introduction Composed of a combinational circuit to which the memory elements are connected to form a feedback
More informationAdministrative issues. Sequential logic
Administrative issues Midterm #1 will be given Tuesday, October 29, at 9:30am. The entire class period (75 minutes) will be used. Open book, open notes. DDPP sections: 2.1 2.6, 2.10 2.13, 3.1 3.4, 3.7,
More informationCS 110 Computer Architecture. Finite State Machines, Functional Units. Instructor: Sören Schwertfeger.
CS 110 Computer Architecture Finite State Machines, Functional Units Instructor: Sören Schwertfeger http://shtech.org/courses/ca/ School of Information Science and Technology SIST ShanghaiTech University
More informationDigital Design, Kyung Hee Univ. Chapter 5. Synchronous Sequential Logic
Chapter 5. Synchronous Sequential Logic 1 5.1 Introduction Electronic products: ability to send, receive, store, retrieve, and process information in binary format Dependence on past values of inputs Sequential
More informationCS 151 Final. Instructions: Student ID. (Last Name) (First Name) Signature
CS 151 Final Name Student ID Signature :, (Last Name) (First Name) : : Instructions: 1. Please verify that your paper contains 19 pages including this cover. 2. Write down your Student-Id on the top of
More informationSequential Digital Design. Laboratory Manual. Experiment #3. Flip Flop Storage Elements
The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Spring 2018 ECOM 2022 Khaleel I. Shaheen Sequential Digital Design Laboratory Manual Experiment #3 Flip Flop Storage
More informationDigital Electronics II 2016 Imperial College London Page 1 of 8
Information for Candidates: The following notation is used in this paper: 1. Unless explicitly indicated otherwise, digital circuits are drawn with their inputs on the left and their outputs on the right.
More informationCS61C : Machine Structures
inst.eecs.berkeley.edu/~cs61c CS61C : Machine Structures Lecture 24 State Circuits : Circuits that Remember Senior Lecturer SOE Dan Garcia www.cs.berkeley.edu/~ddgarcia Bio NAND gate Researchers at Imperial
More informationVTU NOTES QUESTION PAPERS NEWS RESULTS FORUMS Registers
Registers Registers are a very important digital building block. A data register is used to store binary information appearing at the output of an encoding matrix.shift registers are a type of sequential
More informationECE 301 Digital Electronics
ECE 301 Digital Electronics Derivation of Flip-Flop Input Equations and State Assignment (Lecture #24) The slides included herein were taken from the materials accompanying Fundamentals of Logic Design,
More informationChapter 11 State Machine Design
Chapter State Machine Design CHAPTER OBJECTIVES Upon successful completion of this chapter, you will be able to: Describe the components of a state machine. Distinguish between Moore and Mealy implementations
More informationChapter 2. Digital Circuits
Chapter 2. Digital Circuits Logic gates Flip-flops FF registers IC registers Data bus Encoders/Decoders Multiplexers Troubleshooting digital circuits Most contents of this chapter were covered in 88-217
More informationIntroduction. Serial In - Serial Out Shift Registers (SISO)
Introduction Shift registers are a type of sequential logic circuit, mainly for storage of digital data. They are a group of flip-flops connected in a chain so that the output from one flip-flop becomes
More informationPage 1. Some Definitions. Chapter 3: Sequential Logic. Sequential Logic. The Combinational Logic Unit. A NOR Gate with a Lumped Delay
3- hapter 3 equential Logic hapter 3: equential Logic 3-2 hapter 3 equential Logic ome efinitions r. Tim McGuire am Houston tate University ased on notes by Miles Murdocca ombinational logic: a digital
More informationComputer Organization & Architecture Lecture #5
Computer Organization & Architecture Lecture #5 Shift Register A shift register is a register in which binary data can be stored and then shifted left or right when a shift signal is applied. Bits shifted
More informationTMEL53, DIGITALTEKNIK. INTRODUCTION TO SYNCHRONOUS CIRCUITS, FLIP-FLOPS and COUNTERS
LINKÖPING UNIVERSITY Department of Electrical Engineering TMEL53, DIGITALTEKNIK INTRODUCTION TO SYNCHRONOUS CIRCUITS, FLIP-FLOPS and COUNTERS Mario Garrido Gálvez mario.garrido.galvez@liu.se Linköping,
More informationDIGITAL SYSTEM DESIGN UNIT I (2 MARKS)
DIGITAL SYSTEM DESIGN UNIT I (2 MARKS) 1. Convert Binary number (111101100) 2 to Octal equivalent. 2. Convert Binary (1101100010011011) 2 to Hexadecimal equivalent. 3. Simplify the following Boolean function
More informationCS T34-DIGITAL SYSTEM DESIGN Y2/S3
UNIT III Sequential Logic: Latches versus Flip Flops SR, D, JK, Master Slave Flip Flops Excitation table Conversion of Flip flops Counters: Asynchronous, synchronous, decade, presettable Shift Registers:
More informationSynchronous sequential circuits
8.6.5 Synchronous sequential Table of content. Combinational circuit design. Elementary combinatorial for data transmission. Memory structures 4. Programmable logic devices 5. Algorithmic minimization
More informationSequencing and Control
Sequencing and Control Lan-Da Van ( 范倫達 ), Ph. D. Department of Computer Science National Chiao Tung University Taiwan, R.O.C. Spring, 2016 ldvan@cs.nctu.edu.tw http://www.cs.nctu.edu.tw/~ldvan/ Source:
More informationUNIT III. Combinational Circuit- Block Diagram. Sequential Circuit- Block Diagram
UNIT III INTRODUCTION In combinational logic circuits, the outputs at any instant of time depend only on the input signals present at that time. For a change in input, the output occurs immediately. Combinational
More informationChapter 3 Unit Combinational
EE 200: Digital Logic Circuit Design Dr Radwan E Abdel-Aal, COE Logic and Computer Design Fundamentals Chapter 3 Unit Combinational 5 Registers Logic and Design Counters Part Implementation Technology
More informationUnit 9 Latches and Flip-Flops. Dept. of Electrical and Computer Eng., NCTU 1
Unit 9 Latches and Flip-Flops Dept. of Electrical and Computer Eng., NCTU 1 9.1 Introduction Dept. of Electrical and Computer Eng., NCTU 2 What is the characteristic of sequential circuits in contrast
More informationELCT201: DIGITAL LOGIC DESIGN
ELCT201: DIGITAL LOGIC DESIGN Dr. Eng. Haitham Omran, haitham.omran@guc.edu.eg Dr. Eng. Wassim Alexan, wassim.joseph@guc.edu.eg Lecture 6 Following the slides of Dr. Ahmed H. Madian ذو الحجة 1438 ه Winter
More informationFlip-Flops and Sequential Circuit Design
Flip-Flops and Sequential Circuit Design ECE 52 Summer 29 Reading ssignment Brown and Vranesic 7 Flip-Flops, Registers, Counters and a Simple Processor 7.5 T Flip-Flop 7.5. Configurable Flip-Flops 7.6
More informationMultiplexor (aka MUX) An example, yet VERY useful circuit!
Multiplexor (aka MUX) An example, yet VERY useful circuit! A B 0 1 Y S A B Y 0 0 x 0 0 1 x 1 1 x 0 0 1 x 1 1 S=1 S=0 Y = (S)? B:A; Y=S A+SB when S = 0: output A 1: output B 56 A 32-bit MUX Use 32 1-bit
More informationChapter 3. Boolean Algebra and Digital Logic
Chapter 3 Boolean Algebra and Digital Logic Chapter 3 Objectives Understand the relationship between Boolean logic and digital computer circuits. Learn how to design simple logic circuits. Understand how
More information