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CS 303 Logic & Digital System Design - An Overview

CS 303 Logic & Digital System Design - An Overview. Erkay Savaş Sabancı University. Motivation. Analysis & design of digital electronic circuits Why digital circuits? They are everywhere and generic

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CS 303 Logic & Digital System Design - An Overview

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  1. CS 303Logic & Digital System Design- An Overview Erkay Savaş Sabancı University

  2. Motivation • Analysis & design of digital electronic circuits • Why digital circuits? • They are everywhere and generic • digital computers, smart phones, data communication, digital recording, digital TV, many others • Fundamental concepts in the design of digital systems • Basic tools for the design of digital circuits • Logic gates (AND, OR, NOT) • Boolean algebra

  3. What is a Digital System? • One characteristic: • Ability of manipulating discrete elements of information • A set that has a finite number of elements contains discrete information • Examples for discrete sets • Decimal digits {0, 1, …, 9} • Alphabet {A, B, …, Y, Z} • Binary digits {0, 1} • One important problem • how to represent the elements of discrete sets in physical systems?

  4. How to Represent? • In electronics circuits, we have electrical signals • voltage • current • Different strengths of a physical signal can be used to represent elements of the discrete set. • Which discrete set? • Binary set is the easiest • two elements {0, 1} • Just two signal levels: 0 V and 4 V • This is why we use binary system to represent the information in digital systems.

  5. Binary System • Binary set {0, 1} • Th elements of binary set, 0 and 1 are called “binary digits” • or shortly “bits”. • How to represent the elements of other discrete sets • Decimal digits {0, 1, …, 9} • Alphabet {A, B, …, Y, Z} • Elements of any discrete sets can be represented using groups of bits. • 9  ? • A ?

  6. How Many Bits? • What is the formulae for number of bits to represent a discrete set of n elements • {0, 1, 2, 3} • 00  0, 01  1, 10  2, ands 11  3. • {0, 1, 2, 3, 4, 5, 6, 7} • 000  0, 001  1, 010  2, ands 011  3 • 100  4, 101  5, 110  6, ands 111  7. • The formulae, then, • ? • If n = 9, then ? bits are needed

  7. Nature of Information • Is information of discrete nature? • Sometimes, but usuallynot. • Anything related to money (e.g. financial computations, accounting etc) involves discrete information • In nature, information comes in a continuous form • temperature, humidity level, air pressure, etc. • Continuous data must be converted (i.e. quantized) into discrete data • lost of some of the information • We need ADC (DAC)

  8. CPU Registers Outside world ALU Control FPU Multiplier/ Divider General-Purpose Computers • Best known example for digital systems • Components • CPU, I/O units, Memory unit General-purpose computer CPU Memory I/O Interconnect

  9. Textbook & References • Textbook • M. Morris Mano, & Michael D. Ciletti “Digital Design”, Fourth Edition, Prentice Hall, 2007. • Other references • M. Morris Mano and Charles R. Kime, “Logic and Computer Design Fundamentals”, Fourth Edition Prentice Hall, 2007. • Tens of digital design books

  10. Lecture • Three hours (2+1) a week (four credits) • Monday: 12:40 – 13:30 (FENS G077) • Thursday: 15:40 – 16:30 (FENS G077) • Attendance is a must • Failing to attend three lectures in which attendance is collected may result in one letter down in your grade

  11. Recitation • One hour (two sections) • A: Thursday: 13:40 – 14:30 (FENS G077) • B: Friday: 13:40 – 14:30 (FENS G029) • What to do? • Regular lecture (if necessary) • Instructive sessions for lab equipments • Problem solving sessions (e.g. preparatory for exams) • HDL language sessions • How to know? • It will be announced

  12. Laboratory Assignments • Six Sections • A – Tuesday: 10:40 – 12:30 (FENS 1033) • B – Monday: 08:40 – 10:30 (FENS 1033) • C –Tuesday: 08:40 – 10:30 (FENS 1033) • D –Monday: 13:40 – 15:30 (FENS 1033) • E – Monday: 10:40 – 12:30 (FENS 1033) • At least four lab assignments • It is obligatory to do all the assignments • Weight: 15% • Work in groups of two

  13. Your Board

  14. Short Homework Assignments • At times • Weight: 5%

  15. Project • A big development project where you use what you learn • Design + implementation • Weight: 10% • No partial credit • Essential to demonstrate a working version • Works in groups of two

  16. Exams • Two midterm exams • Weight: 35% • Midtem I : November • Midterm II: December • Final exam • Weight: 35% • As scheduled by registration office • Only one makeup exam • After final exam that substitues exams you missed

  17. Lab & Term Project • 1st lab: integrated circuits on a breadboard • Other labs: FPGA board • How to use them: • Informative sessions during recitation hours

  18. Lab Assistants • Duygu Karaoğlan (FENS 2001) • Hazar A. İlhan • Ecem Ünal • Yusuf Külah • Others

  19. SUCourse • Will be used for (nearly) everything • communication media • announcements • lab assignments postings • short homework postings • uploading reports, homework, etc.

  20. Contact Information • Erkay Savaş • Place: FENS 1098 • e-mail: erkays@sabanciuniv.edu • Use SUCourse, then e-mail • You can call me if it is urgent • Office hours: • Monday 15:40 – 17:30 • Or by appointment • TBA for assistants

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