Registers and Counters
|
|
- Karen Malone
- 6 years ago
- Views:
Transcription
1 Registers and Counters ( 范倫達 ), Ph. D. Department of Computer Science National Chiao Tung University Taiwan, R.O.C. Fall, 2017 ldvan@cs.nctu.edu.tw
2 Registers Shift Registers Ripple Counters Synchronous Counters Other Counter HDL Description Outlines DCD-06-2
3 Registers Clocked sequential circuits a group of flip-flops and combinational gates connected to form a feedback path Flip-flops + Combinational gates (essential) (optional) Register: a group of flip-flops gates that determine how the information is transferred into the register Counter: a register that goes through a predetermined sequence of states DCD-06-3
4 Four-Bit Register An n-bit register n flip-flops capable of storing n bits of binary information 4-bit register DCD-06-4
5 Four-bit Register with Parallel Load and No Change DCD-06-5
6 Shift Registers Shift register a register capable of shifting its binary information in one or both directions Simplest shift register Four-bit shift register DCD-06-6
7 Transfer Serial transfer vs. Parallel transfer Serial transfer Information is transferred one bit at a time shift the bit out of the source register into the destination register Parallel transfer: All the bits of the register are transferred at the same time DCD-06-7
8 Serial Transfer from Reg A to Reg B DCD-06-8
9 Serial Transfer from Reg A to Reg B DCD-06-9
10 Serial Adder Using D Flip-Flops 4-Bit SR 4-Bit SR DCD-06-10
11 Serial Adder Using D Flip-Flops Clk SC SI_B SO_B SO_A S C =1000 DCD-06-11
12 Serial Adder Using JK Flip-Flops Digital Circuit Design J Q = x y K Q = x y = (x + y) S = x y Q DCD-06-12
13 Serial Adder Using JK Flip-Flops Digital Circuit Design Ci Second form of serial adder DCD-06-13
14 Universal Shift Register Shift Register Unidirectional shift register Bidirectional shift register Universal shift register: has both direction shifts & parallel load/out capabilities Capability of a universal shift register: 1. A clear control to clear the register to A clock input to synchronize the operations. 3. A shift-right control to enable the shift right operation and the serial input and output lines associated with the shift right. 4. A shift-left control to enable the shift left operation and the serial input and output lines associated with the shift left. 5. A parallel-load control to enable a parallel transfer and the n parallel input lines associated with the parallel transfer. 6. n parallel output lines. 7. A control state that leaves the information in the register unchanged in response to the clock. DCD-06-14
15 Four-Bit Universal Shift Register Clear s1 s0 A3+ A2+ A1+ A0+ (operation) Clear A3 A2 A1 A0 No change sri A3 A2 A1 Shift right A2 A1 A0 sli Shift left I3 I2 I1 I0 Parallel load DCD-06-15
16 Four-Bit Universal Shift Register A 0 DCD-06-16
17 Ripple Counters Counter: a register that goes through a prescribed sequence of states upon the application of input pulses Input pulses: may be clock pulses or originate from some external source The sequence of states: may follow the binary number sequence ( Binary counter) or any other sequence of states Categories of counters Ripple counters: The flip-flop output transition serves as a source for triggering other flip-flops. no common clock pulse (not synchronous) Synchronous counters: The CLK inputs of all flip-flops receive a common clock. DCD-06-17
18 Four-Bit Binary Ripple Counter A simple complement flip-flop can be obtained: from a JK flip-flop with the J and K inputs tied together from T flip-flop use a D flip-flop with the complement output connected to the D input. Example: 0011=> DCD-06-18
19 Four-Bit Binary Ripple Counter DCD-06-19
20 Timing Analysis of Binary Ripple Counter Digital Circuit Design Count A A A A DCD-06-20
21 BCD Ripple Counter Hint1: Q 1 changes state after each clock pulse. Hint 2: Q 2 complements every time Q 1 goes from 1 to 0 as long as Q 8 =0. When Q 8 becomes 1, Q 2 remains at 0. Hint 3: Q 4 complements every time Q 2 goes from 1 to 0. Hint 4: Q 8 remains at 0 as long as Q 2 or Q 4 is 0. When both Q 2 and Q 4 become 1, Q 8 complements when Q 1 goes from 1 to 0. Q 8 is cleared on the next transition of Q 1. DCD-06-21
22 Three-Decade BCD Ripple Counter Digital Circuit Design DCD-06-22
23 Synchronous Counters Synchronous counter A common clock triggers all flip-flops simultaneously. Design procedure apply the same procedure of sync seq ckts Sync counter is simpler than general sync seq ckts DCD-06-23
24 Four-Bit Sync. Binary Counter up down down A' 0 up A 0 down A' 0 A' 1 up A 0 A 1 down A' 0 A' 1 A' 2 Four-bit synchronous binary counter Four-bit up-down binary counter DCD-06-24
25 Timing Analysis of Sync. Binary Counter Digital Circuit Design Clk CE A A A A DCD-06-25
26 Sync. BCD Counters X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X DCD-06-26
27 Sync. BCD Counters 1 T Q 1 T Q 2 T Q 4 T Q 8 C C C C y CLK Simplified functions: Need to consider other unused 6 cases DCD-06-27
28 Four-Bit Sync. Binary Counter with Parallel Load DCD-06-28
29 Four-Bit Sync. Binary Counter with Parallel Load DCD-06-29
30 Sync. BCD Counter with Parallel Load Generate any count sequence: E.g.: BCD counter Counter with parallel load Digital Circuit Design DCD-06-30
31 Other Counters Counters: can be designed to generate any desired sequence of states Divide-by-N counter (modulo-n counter) a counter that goes through a repeated sequence of N states The sequence may follow the binary count or may be any other arbitrary sequence n flip-flops 2 n binary states Unused states states that are not used in specifying the FSM may be treated as don t-care conditions or may be assigned specific next states Self-correcting counter Ensure that when a ckt enters one of its unused states, it eventually goes into one of the valid states after one or more clock pulses so it can resume normal operation. Analyze the ckt to determine the next state from an unused state after it is designed DCD-06-31
32 Counters with Unused States An example X X 1 X X 1 X 1 X 1 Two unused states: 011 & 111 The simplified flip-flop input eqs: J A = B, K A = B, J B = C, K B = 1, J C = B, K C = 1 DCD-06-32
33 Counter with Unsigned States DCD-06-33
34 Ring Counter Ring counter: a circular shift register with only one flip-flop being set at any particular time, all others are cleared (initial value = ) The single bit is shifted from one flip-flop to the next to produce the sequence of timing signals. T 0 T 1 T 2 T DCD-06-34
35 Ring Counter Application of counters Counters may be used to generate timing signals to control the sequence of operations in a digital system. Approaches for generation of 2 n timing signals Method 1: a shift register with 2 n flip-flops Method 2: an n-bit binary counter together w/ an n-to-2 n -line decoder DCD-06-35
36 Johnson Counter Ring counter vs. Switch-tail ring counter Ring counter a k-bit ring counter circulates a single bit among the flip-flops to provide k distinguishable states. Switch-tail ring counter is a circular shift register w/ the complement output of the last flip-flop connected to the input of the first flip-flop a k-bit switch-tail ring counter will go through a sequence of 2k distinguishable states. (initial value = 0 0 0) Disadv. of the switch-tail ring counter if it finds itself in an unused state, it will persist to circulate in the invalid states and never find its way to a valid state. Johnson counter a k-bit switch-tail ring counter + 2k decoding gates provide outputs for 2k timing signals DCD-06-36
37 Johnson Counter DCD-06-37
38 HDL for Registers and Counters Shift Register Statement: A_par <= {MSB_in, A_par [3: 1]} specifies a concatenation of serial data input for a right shift operation (MSB_in) with bits A_par[3 : 1] of the output data bus. 38
39 HDL Example 6.1 (Universal Shift Register Behavioral Model) 39
40 Variables of type reg retain their value until they are assigned a new value by an assignment statement. Consider the following alternative case statement for the shift register model: 40
41 HDL Example 6.2 (Universal Shift Register Structural Model) 41
42 HDL Example 6.2 (2/3) Digital Circuit Design 42
43 HDL Example 6.2 (3/3) Digital Circuit Design 43
44 HDL Example 6.3 (Synchronous Counter) 44
45 HDL Example 6.4 (Ripple Counter) Digital Circuit Design 45
46 HDL Example
47 Simulation Output of HDL Example
48 Simulation Output of HDL Example
49 Conclusion From this lecture, you have learned the follows: Registers Shift Registers Ripple Counters Synchronous Counters Other Counter Verilog Design DCD-06-49
Registers 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 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 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 informationMC9211 Computer Organization
MC9211 Computer Organization Unit 2 : Combinational and Sequential Circuits Lesson2 : Sequential Circuits (KSB) (MCA) (2009-12/ODD) (2009-10/1 A&B) Coverage Lesson2 Outlines the formal procedures for the
More informationChapter 6 Registers and Counters
EEA051 - Digital Logic 數位邏輯 Chapter 6 Registers and Counters 吳俊興國立高雄大學資訊工程學系 January 2006 Chapter 6 Registers and Counters 6-1 Registers 6-2 Shift Registers 6-3 Ripple Counters 6-4 Synchronous Counters
More informationSynchronous Sequential Logic
Synchronous Sequential Logic ( 范倫達 ), Ph. D. Department of Computer Science National Chiao Tung University Taiwan, R.O.C. Fall, 2017 ldvan@cs.nctu.edu.tw http://www.cs.nctu.edu.tw/~ldvan/ Outlines Sequential
More informationRegister Transfer Level in Verilog: Part II
Source: M. Morris Mano and Michael D. Ciletti, Digital Design, 4rd Edition, 2007, Prentice Hall. Register Transfer Level in Verilog: Part II Lan-Da Van ( 范倫達 ), Ph. D. Department of Computer Science National
More informationRegisters & Counters. BME208 Logic Circuits Yalçın İŞLER
Registers & ounters BME28 Logic ircuits Yalçın İŞLER islerya@yahoo.com http://me.islerya.com Registers Registers are clocked sequential circuits A register is a group of flip-flops 2 Each flip-flop capable
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 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 informationCSC Computer Architecture and Organization
S 37 - omputer Architecture and Organization Lecture 6: Registers and ounters Registers A register is a group of flip-flops. Each flip-flop stores one bit of data; n flip-flops are required to store n
More informationSynchronous Sequential Logic
Synchronous Sequential Logic ( 范倫達 ), Ph. D. Department of Computer Science National Chiao Tung University Taiwan, R.O.C. Fall, 2012 ldvan@cs.nctu.edu.tw http://www.cs.nctu.edu.tw/~ldvan/ Outlines Sequential
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 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 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 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 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 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 informationRegisters and Counters
Registers and Counters A register is a group of flip-flops which share a common clock An n-bit register consists of a group of n flip-flops capable of storing n bits of binary information May have combinational
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 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 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 informationVignana Bharathi Institute of Technology UNIT 4 DLD
DLD UNIT IV Synchronous Sequential Circuits, Latches, Flip-flops, analysis of clocked sequential circuits, Registers, Shift registers, Ripple counters, Synchronous counters, other counters. Asynchronous
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 informationChapter 4. Logic Design
Chapter 4 Logic Design 4.1 Introduction. In previous Chapter we studied gates and combinational circuits, which made by gates (AND, OR, NOT etc.). That can be represented by circuit diagram, truth table
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 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 informationDigital Logic Design ENEE x. Lecture 19
Digital Logic Design ENEE 244-010x Lecture 19 Announcements Homework 8 due on Monday, 11/23. Agenda Last time: Timing Considerations (6.3) Master-Slave Flip-Flops (6.4) This time: Edge-Triggered Flip-Flops
More informationSri Vidya College of Engineering And Technology. Virudhunagar Department of Electrical and Electronics Engineering
Sri Vidya College of Engineering And Technology Virudhunagar 626 005 Department of Electrical and Electronics Engineering Year/ Semester/ Class : II/ III/ EEE Academic Year: 2017-2018 Subject Code/ Name:
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 informationExperiment # 9. Clock generator circuits & Counters. Digital Design LAB
Digital Design LAB Islamic University Gaza Engineering Faculty Department of Computer Engineering Fall 2012 ECOM 2112: Digital Design LAB Eng: Ahmed M. Ayash Experiment # 9 Clock generator circuits & Counters
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 informationChapter 5: Synchronous Sequential Logic
Chapter 5: Synchronous Sequential Logic NCNU_2016_DD_5_1 Digital systems may contain memory for storing information. Combinational circuits contains no memory elements the outputs depends only on the inputs
More informationIT T35 Digital system desigm y - ii /s - iii
UNIT - III Sequential Logic I Sequential circuits: latches flip flops analysis of clocked sequential circuits state reduction and assignments Registers and Counters: Registers shift registers ripple counters
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 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 informationOther Flip-Flops. Lecture 27 1
Other Flip-Flops Other types of flip-flops can be constructed by using the D flip-flop and external logic. Two flip-flops less widely used in the design of digital systems are the JK and T flip-flops.
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 informationELE2120 Digital Circuits and Systems. Tutorial Note 8
ELE2120 Digital Circuits and Systems Tutorial Note 8 Outline 1. Register 2. Counters 3. Synchronous Counter 4. Asynchronous Counter 5. Sequential Circuit Design Overview 1. Register Applications: temporally
More informationLSN 12 Shift Registers
LSN 12 Shift Registers Department of Engineering Technology LSN 12 Shift Registers Digital circuits with data storage and data movement functions Storage capacity is the total number of bits of digital
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 informationDIGITAL SYSTEM FUNDAMENTALS (ECE421) DIGITAL ELECTRONICS FUNDAMENTAL (ECE422) COUNTERS
COURSE / CODE DIGITAL SYSTEM FUNDAMENTALS (ECE421) DIGITAL ELECTRONICS FUNDAMENTAL (ECE422) COUNTERS One common requirement in digital circuits is counting, both forward and backward. Digital clocks and
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 informationRS flip-flop using NOR gate
RS flip-flop using NOR gate Triggering and triggering methods Triggering : Applying train of pulses, to set or reset the memory cell is known as Triggering. Triggering methods:- There are basically two
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 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 informationUnit-5 Sequential Circuits - 1
Unit-5 Sequential Circuits - 1 1. With the help of block diagram, explain the working of a JK Master-Slave flip flop. 2. Differentiate between combinational circuit and sequential circuit. 3. Explain Schmitt
More informationSerial In/Serial Left/Serial Out Operation
Shift Registers The need to storage binary data was discussed earlier. In digital circuits multi-bit data has to be stored temporarily until it is processed. A flip-flop is able to store a single binary
More informationDigital Systems Laboratory 3 Counters & Registers Time 4 hours
Digital Systems Laboratory 3 Counters & Registers Time 4 hours Aim: To investigate the counters and registers constructed from flip-flops. Introduction: In the previous module, you have learnt D, S-R,
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 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 informationRS flip-flop using NOR gate
RS flip-flop using NOR gate Triggering and triggering methods Triggering : Applying train of pulses, to set or reset the memory cell is known as Triggering. Triggering methods:- There are basically two
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 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 informationLab #10 Hexadecimal-to-Seven-Segment Decoder, 4-bit Adder-Subtractor and Shift Register. Fall 2017
University of Texas at El Paso Electrical and Computer Engineering Department EE 2169 Laboratory for Digital Systems Design I Lab #10 Hexadecimal-to-Seven-Segment Decoder, 4-bit Adder-Subtractor and Shift
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 informationModule -5 Sequential Logic Design
Module -5 Sequential Logic Design 5.1. Motivation: In digital circuit theory, sequential logic is a type of logic circuit whose output depends not only on the present value of its input signals but on
More informationD Latch (Transparent Latch)
D Latch (Transparent Latch) -One way to eliminate the undesirable condition of the indeterminate state in the SR latch is to ensure that inputs S and R are never equal to 1 at the same time. This is done
More informationEKT 121/4 ELEKTRONIK DIGIT 1
EKT 2/4 ELEKTRONIK DIGIT Kolej Universiti Kejuruteraan Utara Malaysia Sequential Logic Circuits - COUNTERS - LATCHES (review) S-R R Latch S-R R Latch Active-LOW input INPUTS OUTPUTS S R Q Q COMMENTS Q
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 informationECE 341. Lecture # 2
ECE 341 Lecture # 2 Instructor: Zeshan Chishti zeshan@pdx.edu October 1, 2014 Portland State University Announcements Course website reminder: http://www.ece.pdx.edu/~zeshan/ece341.htm Homework 1: Will
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 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 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 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 informationELEN Electronique numérique
ELEN0040 - Electronique numérique Patricia ROUSSEAUX Année académique 2014-2015 CHAPITRE 6 Registers and Counters ELEN0040 6-277 Design of a modulo-8 binary counter using JK Flip-flops 3 bits are required
More informationSequential Circuits. Output depends only and immediately on the inputs Have no memory (dependence on past values of the inputs)
Sequential Circuits Combinational circuits Output depends only and immediately on the inputs Have no memory (dependence on past values of the inputs) Sequential circuits Combination circuits with memory
More informationB.Tech CSE Sem. 3 15CS202 DIGITAL SYSTEM DESIGN (Regulations 2015) UNIT -IV
B.Tech CSE Sem. 3 5CS22 DIGITAL SYSTEM DESIGN (Regulations 25) UNIT -IV SYNCHRONOUS SEQUENTIAL CIRCUITS OUTLINE FlipFlops SR,D,JK,T Analysis of Synchronous Sequential Circuit State Reduction and Assignment
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 informationCombinational vs Sequential
Combinational vs Sequential inputs X Combinational Circuits outputs Z A combinational circuit: At any time, outputs depends only on inputs Changing inputs changes outputs No regard for previous inputs
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 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 informationNH 67, Karur Trichy Highways, Puliyur C.F, Karur District UNIT-III SEQUENTIAL CIRCUITS
NH 67, Karur Trichy Highways, Puliyur C.F, 639 114 Karur District DEPARTMENT OF ELETRONICS AND COMMUNICATION ENGINEERING COURSE NOTES SUBJECT: DIGITAL ELECTRONICS CLASS: II YEAR ECE SUBJECT CODE: EC2203
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 informationRegisters, Register Transfers and Counters Dr. Fethullah Karabiber
36 OMPUTER HARWARE Registers, Register Transfers and ounters r. Fethullah Karabiber Overview 2 Registers, Microoperations and Implementations Registers and load enable Register transfer operations Microoperations
More informationLecture 8: Sequential Logic
Lecture 8: Sequential Logic Last lecture discussed how we can use digital electronics to do combinatorial logic we designed circuits that gave an immediate output when presented with a given set of inputs
More informationUNIT IV. Sequential circuit
UNIT IV Sequential circuit Introduction In the previous session, we said that the output of a combinational circuit depends solely upon the input. The implication is that combinational circuits have no
More informationWWW.STUDENTSFOCUS.COM + Class Subject Code Subject Prepared By Lesson Plan for Time: Lesson. No 1.CONTENT LIST: Introduction to Unit III 2. SKILLS ADDRESSED: Listening I year, 02 sem CS6201 Digital Principles
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 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 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 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 informationNH 67, Karur Trichy Highways, Puliyur C.F, Karur District DEPARTMENT OF INFORMATION TECHNOLOGY CS 2202 DIGITAL PRINCIPLES AND SYSTEM DESIGN
NH 67, Karur Trichy Highways, Puliyur C.F, 639 114 Karur District DEPARTMENT OF INFORMATION TECHNOLOGY CS 2202 DIGITAL PRINCIPLES AND SYSTEM DESIGN UNIT 4 SYNCHRONOUS SEQUENTIAL LOGIC Sequential circuits
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 informationDigital Logic Design Sequential Circuits. Dr. Basem ElHalawany
Digital Logic Design Sequential Circuits Dr. Basem ElHalawany Combinational vs Sequential inputs X Combinational Circuits outputs Z A combinational circuit: At any time, outputs depends only on inputs
More informationMODULE 3. Combinational & Sequential logic
MODULE 3 Combinational & Sequential logic Combinational Logic Introduction Logic circuit may be classified into two categories. Combinational logic circuits 2. Sequential logic circuits A combinational
More informationDigital Circuit And Logic Design I. Lecture 8
Digital Circuit And Logic Design I Lecture 8 Outline Sequential Logic Design Principles (1) 1. Introduction 2. Latch and Flip-flops 3. Clocked Synchronous State-Machine Analysis Panupong Sornkhom, 2005/2
More informationDigital Circuit And Logic Design I
Digital Circuit And Logic Design I Lecture 8 Outline Sequential Logic Design Principles (1) 1. Introduction 2. Latch and Flip-flops 3. Clocked Synchronous State-Machine Panupong Sornkhom, 2005/2 2 1 Sequential
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 informationSwitching Theory And Logic Design UNIT-IV SEQUENTIAL LOGIC CIRCUITS
Switching Theory And Logic Design UNIT-IV SEQUENTIAL LOGIC CIRCUITS Sequential circuits Classification of sequential circuits: Sequential circuits may be classified as two types. 1. Synchronous sequential
More informationCSE115: Digital Design Lecture 23: Latches & Flip-Flops
Faculty of Engineering CSE115: Digital Design Lecture 23: Latches & Flip-Flops Sections 7.1-7.2 Suggested Reading A Generic Digital Processor Building Blocks for Digital Architectures INPUT - OUTPUT Interconnect:
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 5 Sequential Circuits
Logic and Computer Design Fundamentals Chapter 5 Sequential Circuits Part 2 Sequential Circuit Design Charles Kime & Thomas Kaminski 28 Pearson Education, Inc. (Hyperlinks are active in View Show mode)
More informationUNIT 1 NUMBER SYSTEMS AND DIGITAL LOGIC FAMILIES 1. Briefly explain the stream lined method of converting binary to decimal number with example. 2. Give the Gray code for the binary number (111) 2. 3.
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(CSC-3501) Lecture 7 (07 Feb 2008) Seung-Jong Park (Jay) CSC S.J. Park. Announcement
Seung-Jong Park (Jay) http://www.csc.lsu.edu/~sjpark Computer Architecture (CSC-3501) Lecture 7 (07 Feb 2008) 1 Announcement 2 1 Combinational vs. Sequential Logic Combinational Logic Memoryless Outputs
More informationScanned by CamScanner
NAVEEN RAJA VELCHURI DSD & Digital IC Applications Example: 2-bit asynchronous up counter: The 2-bit Asynchronous counter requires two flip-flops. Both flip-flop inputs are connected to logic 1, and initially
More informationSequencing. Lan-Da Van ( 范倫達 ), Ph. D. Department of Computer Science National Chiao Tung University Taiwan, R.O.C. Fall,
Sequencing ( 范倫達 ), Ph. D. Department of Computer Science National Chiao Tung University Taiwan, R.O.C. Fall, 2013 ldvan@cs.nctu.edu.tw http://www.cs.nctu.edu.tw/~ldvan/ Outlines Introduction Sequencing
More informationModeling Digital Systems with Verilog
Modeling Digital Systems with Verilog Prof. Chien-Nan Liu TEL: 03-4227151 ext:34534 Email: jimmy@ee.ncu.edu.tw 6-1 Composition of Digital Systems Most digital systems can be partitioned into two types
More informationDr.Mohamed Elmahdy Winter 2015 Eng.Yasmin Mohamed. Problem Set 6. Analysis and Design of Clocked Sequential Circuits. Discussion: 7/11/ /11/2015
Dr. Elmahdy Winter 2015 Problem Set 6 Analysis and Design of Clocked Sequential Circuits Discussion: 7/11/2015 17/11/2015 *Exercise 6-1: (Problem 5.10) A sequential circuit has two JK flip-flops A and
More information