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CPT 310 Logic and Computer Design Instructor: David LublinerPhone 973.596.2878 email : robot1@adm.njit.edu Engineering Technology Dept.Cell 201-960-8018 (important) M-F 10-5PM Text: Logic & Computer Design Fundamentals: 3 rd Edition M. Morris Mano & Charles Kime (Software included with text XiLinx version 6.3i) Pentium 4 1)1 MB L2 Cache 2)Floating Point Unit 3)Schedulers 4)Allocator 5)Arithmetic & Logic Unit 6)16 KB Data Cache 7)Microcode rom 8)Trace Cache 9)Data Translation Buffer 10)Brach Perdition Unit 11)Instruction TLB Memory Diagram pg 6 text CPU Control Unit Data Path Input / Output 10101010 11011011 Basic Architecture & Logic Course Summary Detailed Understanding Computer Design

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Grading - CPT 310 Midterm Exam25% Final Exam 25% Homework50% –Exercises at the end of chapter –XiLinx Software: schematic editor Course Summary The object of this course is to provide an understanding of the fundamentals of logic and computer design. The first half covers logic design; number systems, Gates, mapping (Karnaugh maps), arithmetic and sequential circuits and the second half covers digital system design; arithmetic and logic unit (ALU), sequential control design and communication between CPU and i/o devices. The course provides digital system design fundamentals while taking a gradual bottom up development of the fundamentals. Schedule Week 1 st 9/7Course Introduction 2 nd 9/14Binary numbers/Arithmetic Operations/BCD/Gray codes/ASCII 3 rd 9/21Combinatorial Logic Circuits Part I / XiLinx Schematic editor Part I 4 th 9/28Combinatorial Logic Circuits Part 2/ XiLinx Schematic editor Part2 I 5 th 10/5Combinatorial Logic Design / Hierarch and top down design 6 th 10/12Combinatorial Functions and Circuits 7 th 10/19Programmable Logic arrays & devices/Decodes/Multiplexers 8 th Midterm10/26 9 th 11/2Arithmetic functions & circuits 10 th 11/9Sequential circuits 11 th 11/16Registers and Register Transfers 12 th 11/23Sequencing & ControlThanksgiving 24 th & 25th 13 th 11/30Computer Design Basics/Instruction set architectures 14 th 12/7Input-Output and Communications Reading Days 12/14 15 th Final 12/21

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Course Overview Chapter 1: Digital Computers and Information Illustration at beginning of each Chapter Base 10 Binary Base 2 Octal Base 8 Hex bas 16 08 1000 10 8 15 1111 17 F BCD Binary Coded Decimal 4 bit code represents number 0-9 Base 10 BCD 00000 10001 91001 -Addition -Subtraction Parity Bit (checks for transmission errors Checks if total number of bits is even or odd Number even parity 100000101000001 101010011010100

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Course Overview Chapter 2: Combinatorial Logic Circuits Illustration Pg. 32 Logic Circuit Diagrams - Circuit Optimization -2,3,4 level maps 48 elements Optimized to 25 Clock pulses are used instruct components (gates, etc. to perform the next operation) Maps used to optimize circuits XY 0101 0 1 X Y 1 0101 X Two Var Map Ex: XY Y

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Xilinx Design & Simulation Software

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Course Overview Chapter 3: Combinatorial Logic Design Combinatorial Logic Circuit Diagrams - Programmable Implementation Devices Design Hierarchy reduces the complexity required to represent the schematic diagram of a circuit Combinatorial Circuit N InputsM Outputs Components Represents the function of these circuits

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Course Overview Chapter 4: Combinatorial Functions and Circuits Fundamental circuits decoders, encoders, code converters, multiplexers and programmable logic, which are building blocks for larger circuits and systems. Sequential Circuit Combinatorial circuit Inputs Storage Elements Next State Outputs Present State Decoding An n bit code is capable of representing 2 n distinct elements Pg 148 CPUCache Main Memory

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Course Overview Chapter 5: Arithmetic Functions and Circuits The concept of iterative circuits made up of arrays of combinatorial cells is introduced. Blocks designed as iterative arrays for performing addition, subtraction and multiplication are covered Two’s Compliment. ( Subtract by adding ) Carry Look Ahead Adder ( pg 206 ) Iterative Circuit Operates on two n-input input vectors and produces an n-output vector Pg 202 4-bit Ripple Carry Adder

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Course Overview Chapter 6: Sequential Circuits In order to perform useful of flexible sequences of operations we need to be able to construct circuits that can store information between operations. Such circuits are called sequential circuits SR Latch with NOR gates Synchronous clocked Sequential Circuit Set-Reset Pg 244 The most basic storage elements are latches, from which flip flops are constructed J-K Flip-Flop S R Clk Q Q S R Qn+1 1 0 1 0 1 0 0 0 Qn 1 1 Qn

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Course Overview Chapter 7: Registers and Register Transfers Registers are particularly useful for storing information during the processing of data and counters assist in sequencing the processing. A data path consists of processing logic and a collection of registers that perform data processing. A control unit is made up of logic that determines the sequence of data processing operations performed by the data path 4 Bit Register Pg 316 Block Diagram of Registers

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Course Overview Chapter 8: Sequencing and Control The focus of this chapter is the control unit. Digital systems can be classified as programmable or non-programmable systems depending on the type of control unit. Non-programmable systems have inputs but do not have any mechanism for executing programs. The focus of this chapter is non- programmable systems, primarily using a multiplier. Programmable systems covered in chapter 10 The control unit determines the operations to be performed and the sequence of those operations based on its inputs and the status bits from the data path. Control Unit for Binary Multiplier Pg 316 State Table for sequence register and decoder part of multiplier control unit

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Course Overview Chapter 9: Memory Basics Random access memory (RAM) stores data temporarily. Read only memory (ROM) stores memory permanently. ROM is one form of a variety of components called programmable logic devices (PLDs) that use stored information to define logic circuits There is Internal Cache and external RAM. Block diagram of 256K by 8 RAM Pg 412 Symbol for 64K x 8 RAM chip Decoder: 2 input bits select 1-4 RAM chips

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Course Overview Chapter 10: Computer Design Basics The generic data path combined with a control unit and memory forms a programmable system, in this case, a simple computer. An Instruction Set Architecture (ISA) combines control unit, and generic data path are combined to form a CPU (Central Processing Unit). In Programmable units memories are present for storage of data and programs Block Diagram of a generic data path Symbol for n-Bit ALU Arithmetic and Logic Unit Pg 433

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Discuss Current Architectures

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