Lab #2: Building the System

Size: px
Start display at page:

Download "Lab #2: Building the System"

Transcription

1 Lab #: Building the System Goal: In this second lab exercise, you will design and build a minimal microprocessor system, consisting of the processor, an EPROM chip for the program, necessary logic chips and some basic I/O consisting of lights and switches. You will also write a simple program which uses the lights and switches, which will verify that your system is working correctly. Week #: Begin designing your system by drawing a schematic diagram. It is recommended that you use a program such as OrCAD, which automatically labels the chips with correct pin numbers. Refer to the data books for the microprocessor, EPROM and logic chips. Some data is provided below. Double check your schematic before beginning construction of the board. Your design should include a reset circuit, which automatically generates a reset signal when power is applied. It must also have a pushbutton which causes a reset when pressed. You should include logic on the board to map all external memory fetches into one memory space. In other words, program fetches (using MOVC) will read from the same chips as external data access (using MOVX). Keep in mind that the 0 control bus signals (PSEN, RD, WR) are active low. Finally, you must include address decoding circuitry on your board to activate the correct memory or I/O chips depending on the memory address being used. The EPROM should obviously be placed beginning at memory location zero, so that its code will be executed after a hardware reset occurs. Later a RAM chip will be added at location 000h. Several I/O chips will also be added to memory locations of your choice. Component Data: The following section is intended as a brief description of several components which may be used in your system. Ultimately, you must determine which components to use in your system and how they will be connected. This data is provided as a starting point, and is not complete. Five general purpose logic chips are shown below. The xx in the middle of each part number should be replaced with the letters for the particular logic family desired. Several other logic gate chips are also available, such as four and eight input gates. Gnd Your design will probably include a xx : decoder chip. The figure below shows the pin assignments and truth table for the xx. When reading the truth table, the x symbol is to be interpreted as a Don t Care input. The three enable input must all be the correct value for any of the outputs to become low. These enable inputs can be quite useful. For example, two xx parts can be used to make a : decoder by connecting the fourth input to different enable inputs on each chip. This two chip configuration will probably cost less than using one xx, which is a : decoder. Timing specifications are not provided here, but may be found in databooks. Keep in mind that there will, of course, be a delay between the application of new input values and the outputs reflecting the new value. A B C G a G b G Y xx Y 0 Y Y Y Y Y Y G G a G b CBA Y 0 Y Y Y Y Y Y Y

2 By referring to the databook for the 0 microprocessor, you will find that a latch is required to implement the address bus. Intel recommends the LS. The xx is a set of eight level triggered flip flops. The pis assignments and truth table are shown below. The Hi Z term indicates that the output lines will enter a high impedance state. This output circuit is known as a tri state output. Tri state outputs are used to control buses, where different devices will be driving the lines are different times. The input is provided so that this latch may be used to drive a bus. The designer must, of course, provide a signal to the line which causes the xx to drive the bus at the correct times. The other unusual symbol in the truth table is the Qo. The Qo symbol indicates that the outputs will retain the same levels that they had before the inputs corresponding to Qo were applied. In other words, the latch acts as a memory cell, outputing its memory contents while in this mode. Q D D Q Q D D Q xx 0 Q D D Q Q D D Q G G xd xq Finally, your system will need to store its program in an EPROM. Provided below are the pin assignments for a few common EPROMs as well as a simple timing diagram for the EPROM s read cycle. Understand timing diagrams can be difficult. Timing diagrams are intended to provide the designer with a set of signal requirements for using the component, as well as an accurate description of how the component will respond. A separate timing diagram is usually provided for each mode of operation of the component in question. The diagrams typically include markings showing many signal timing parameters and how they relate to the signals. A table is usually provided which indicates the minimum and maximum values for each parameter. These parameters were omitted from the diagram above. When reading a timing diagram, such as the one above, the first step is to establish which signal are inputs, which are outputs, which have tri state circuitry, and which may be bi directional. In the diagram above, the Address, Chip Select and Enable signals are all inputs. The Data signals are tri state outputs in this example. Though the signals above are labeled, many timing diagrams do not label their signals, but rather rely upon the reader s conceptual understanding of the signals themselves for this information. The timing diagram above may be interpreted as follows: In order to read data from this EPROM, I must first apply the address to the address inputs. I must keep driving these lines with this signal throughout the read cycle. Shortly after applying the address, I need to drive the chip select input low. Sometime after driving the chip select signal low, my system must drive the output enable signal low. Soon thereafter the valid data will appear on the data lines. Timing parameters will be provided which indicate the maximum time after the application of these signals that the data will appear. Three timing parameters should be given, one for each of the three inputs. In the actual system where the EPROM is used, only one of these is likely to be important, depending upon when the system drives these three inputs. In a very high performance system,

3 special circuitry might be providing an Address and Chip Select signal to this EPROM while another memory device is finishing its read cycle and using the bus. In this case, the designer would be most concerned about the time between the application of the Enable signal and the Data output. A parameter specifying the delay between the rising edge of the Enable signal and the removal of data from the bus would also be important, since another device would be preparing to drive the bus, with its Address and Chip Select signal already driven. In lower performance systems, the designer may simply be comparing the signal requirements of the memory device with those available from a single chip microcontroller, such as the HC or 0. EPROM PIN ASSIGNMENTS A A A A A A A D D 0 A A A A D D D D D Vpp Vpp A A PGM NC A A A A A A A A A A 0 A A A D A A A A A 0 D D D D D D D D (Kx) (Kx) (Kx) A A A A A A D D D D D When using an EPROM, typically the system will only read the EPROM, assuming that it has been programmed before it was installed. When reading an EPROM, the PGM line should be held high, since this active low input selects the EPROM s programming mode. Additionally, the Vpp line, which would be used to apply a high voltage during programming, should be held at the voltage level during normal (read only) use. Input/: You will need to connect four LEDs and four switches to the processor for basic I/O. The four LEDs should be connected to bits 0 through on Port # and the switches should be connected to bits through on Port #. Bits through should not be left floating when the switch contacts are broken. The 0 microprocessor should not be used to directly drive LEDs. To light an LED, a current between ma and 0mA is required. LEDs will behave like other semiconductor diodes, with a nearly constant voltage drop for any significant forward current flow. Unlike normal silicon diodes (0. volt drop), red LEDs typically have a forward voltage drop of about. volts. This can be easily verified experimentally. Typically LEDs are driven by placing a resistor in series with the LED and placing a constant voltage across them. Knowing the LED s voltage drop, the resistor is calculated for the desired current flow. {Aside: LEDs can be placed in series and driven with a constant current source with transistors selectively shorting LEDs to turn them off. This technique is used in low cost tape decks, since the total current drain is only ma and constant for any display pattern, thereby reducing the power supply s cost} When using TTL outputs (such as those of a LS00 Quad NAND Gate chip), it is important to remember that the TTL output stage is NOT rated to source enough current to light a LED. However, the current sinking capability is much greater, so the LED (and or course a resistor) should be connected to. An even better solution is to use a transistor, as shown below. Values for the resistors indicated below can be easily calculated by making some assumptions about the output voltages of the TTL component.

4 TTL POOR DRIVING LEDs with TTL s TTL OK TTL BEST Construction Details: You will be using write wrap construction techniques to build most of your system. Wire wrap construction uses special chip sockets with long, wide pins. The sockets are inserted into a piece of perforated board. It is often helpful to glue the sockets to the board, preventing strain on the wire wrap connections, which would otherwise be responsible for holding the sockets in place. ID tags are available to label the pin numbers on the bottom of the board. It is highly recommended that you use ID tags, since you will be viewing the chips from the bottom side, thereby reversing the configuration of the pin number from the diagrams shown in data books. (If you make your own ID tags, check them carefully to avoid destroying $0 worth of chips to save $ on ID tags!) By reviewing the pin assignments for all of the chips to be installed on the board (including those for lab # and #), a reasonable layout scheme should be apparent. Avoid leaving too much space between the sockets since a considerable amount of circuitry will be added in later labs. Good layout decisions made at this point will prevent a considerable amount of frustration in the near future. Because a significant number of chips will be added in lab #, it is a good idea to install these sockets in the board before wrapping wires. The wires are added using a wire wrap tool. A typical wire wrap tool is shown below, with instructions. Wire wrap wire (0 gauge) is available in a variety of colors. It is strongly recommended that a color coding scheme is used when wiring the board. What You Must Do: You must design the core of your system, including an EPROM for program storage and the simple I/O using lights and switches. You must draw a schematic of your design, preferably with a program such as OrCAD. Finally, you will construct this core system, as described above. Once the construction is finished, the demonstration for week # will consist of a visual assessment of your schematic and constructed board. The board need not be working or tested at this point, but the construction should be nearly complete so that week # may be spent troubleshooting. You must present you board to your TA by the end of week #. Partial credit will be given for a partially constructed board, but no credit will be given if the board is presented late. Week #: Making it Work In addition to constructing the board, you must write a short program which reads the inputs from the four switches and displays this data on the LEDs. It should also contain an interrupt routine. When the external condition is detected (you may install a pushbutton) the interrupt routine will blink the four LEDs on and off several times, then return to the main program. The flash rate should be approximately Hz, which can be achieved by using the internal timers or a software delay loop. The program must be written into an EPROM

5 using the EPROM programmer, then installed onto your board. When programming the EPROM, be certain that the programmer is set to the correct EPROM configuration before you insert your EPROM. For example, a EPROM requires a programming voltage of. volts. The A EPROM uses only. volts for its programming. If a A EPROM is inserted with the programmer set to, it will be destroyed. Be careful! Before connecting power to the board, double check the power supply connection to every chip. If the power supply is connected in reverse, the chips are usually ruined instantly. Since connecting the power incorrectly to the board will destroy almost every chip, it is a good idea to mount a polarized connector to the board and power supply, so that it can not be connected incorrectly. Experience has shown that most of parts that have been ruined while building these boards have met their end because the power supply was connected to the board incorrectly, not due to wiring errors on the board. In particular, the two common errors are applying the + volt line from a power supply to the + volt input on the board and reversing the polarity of the power supply lines. Installing a polarized connector or writing the colors of the power supply lines on the board can save a significant amount of time and money by preventing this potential disaster. (sorry, bad pun...) If the board doesn t work, an oscilloscope can be used to observe the oscillator, PSEN and ALE signals. The reset circuit can be tested with the oscilloscope or a voltmeter. An improper reset circuit can cause the system to stay in a reset condition (PSEN and ALE will be inactive), to execute random code, or be reset at random times during program operation. If the interrupt pushbutton is not connected properly, the processor can falsely detect interrupts, causing the lights to keep blinking. Finally, if the hardware seems to be operational, the software can be run on a working board if the switches and lights are connected similarly. What You Must Do: You must write the short program described above and put it on your board by programming an EPROM. When the program runs correctly, demonstrate the working board to your TA. You should have a printed copy of your schematic and program prepared for the demonstration. Your TA will also make a quick visual assessment of the layout and construction of your board at this time. Of particular interest will be the layout planning (which should allow room to add peripheral hardware), measures taken to prevent the power supply from be connected incorrectly (a very important design consideration for any product), and the overall appearance of the wire wrapping. The Lab Report: Your lab report should include a brief introduction, the schematic diagram for your system including comments where appropriate, a memory map of the system, a listing of your program, and a brief description of the program s operation. Again, it should be typewritten. Grading for Lab #:

Summer 2003 Lecture 21 07/15/03

Summer 2003 Lecture 21 07/15/03 Summer 2003 Lecture 21 07/15/03 Simple I/O Devices Simple i/o hardware generally refers to simple input or output ports. These devices generally accept external logic signals as input and allow the CPU

More information

Microprocessor Architecture. mywbut.com 1

Microprocessor Architecture. mywbut.com 1 Microprocessor Architecture mywbut.com 1 Microprocessor Architecture The microprocessor can be programmed to perform functions on given data by writing specific instructions into its memory. The microprocessor

More information

8051 INTERFACING TO EXTERNAL MEMORY

8051 INTERFACING TO EXTERNAL MEMORY 8051 INTERFACING TO EXTERNAL MEMORY Memory Capacity The number of bits that a semiconductor memory chip can store Called chip capacity It can be in units of Kbits (kilobits), Mbits (megabits), and so on

More information

Lab 4: Digital Electronics BMEn 2151 Introductory Medical Device Prototyping Prof. Steven S. Saliterman

Lab 4: Digital Electronics BMEn 2151 Introductory Medical Device Prototyping Prof. Steven S. Saliterman Lab 4: Digital Electronics BMEn 2151 Introductory Medical Device Prototyping Prof. Steven S. Saliterman Exercise 4-1: Familiarization with Lab Box Contents & Reference Books 4-1-1 CMOS Cookbook (In the

More information

Finite State Machine Lab

Finite State Machine Lab Finite State Machine Module: Lab Procedures Goal: The goal of this experiment is to reinforce state machine concepts by having students design and implement a state machine using simple chips and a protoboard.

More information

Memory & Simple I/O Interfacing

Memory & Simple I/O Interfacing Chapter 10 Memory & Simple I/O Interfacing Expected Outcomes Explain the importance of tri-state devices in microprocessor system Distinguish basic type of semiconductor memory and their applications Relate

More information

1. INTRODUCTION TO MICROPROCESSOR AND MICROCOMPUTER ARCHITECTURE:

1. INTRODUCTION TO MICROPROCESSOR AND MICROCOMPUTER ARCHITECTURE: 1. INTRODUCTION TO MICROPROCESSOR AND MICROCOMPUTER ARCHITECTURE: A microprocessor is a programmable electronics chip that has computing and decision making capabilities similar to central processing unit

More information

Outline for Today. Lab Equipment & Procedures. Teaching Assistants. Announcements

Outline for Today. Lab Equipment & Procedures. Teaching Assistants. Announcements Announcements Homework #2 (due before class) submit file on LMS. Submit a soft copy using LMS, everybody individually. Log onto the course LMS site Online Assignments Homework 2 Upload your corrected HW2-vn.c

More information

DS1306. Serial Alarm Real Time Clock (RTC)

DS1306. Serial Alarm Real Time Clock (RTC) www.dalsemi.com FEATURES Real time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year compensation valid up to 2100 96-byte nonvolatile RAM for data

More information

Z Z-280 MT8930, MT8992/3/4/5 MT8880 MT8888 MT8889 MT8980/1 MT8985, MT8986 (DIP-40) MT8986 (PLCC-44) MT8920B MT8952B

Z Z-280 MT8930, MT8992/3/4/5 MT8880 MT8888 MT8889 MT8980/1 MT8985, MT8986 (DIP-40) MT8986 (PLCC-44) MT8920B MT8952B MSAN-145 How to Interface Mitel Components to Parallel Bus CPUs TABL OF CONTNTS Introduction ISSU 1 August 1993 1.0 Group 1 Components 1.1 Interfacing to the 6802 1.2 Interfacing to the 6809 1.3 Interfacing

More information

MICROPROCESSOR B.Tech. th ECE

MICROPROCESSOR B.Tech. th ECE MICROPROCESSOR B.Tech. th ECE Submitted by: Er. Amita Sharma Dept. of ECE 11/24/2014 2 Microprocessor Architecture The microprocessor can be programmed to perform functions on given data by writing specific

More information

EMBEDDED SYSTEMS COURSE CURRICULUM

EMBEDDED SYSTEMS COURSE CURRICULUM On a Mission to Transform Talent EMBEDDED SYSTEMS COURSE CURRICULUM Table of Contents Module 1: Basic Electronics and PCB Software Overview (Duration: 1 Week)...2 Module 2: Embedded C Programming (Duration:

More information

8051 Interfacing: Address Map Generation

8051 Interfacing: Address Map Generation 85 Interfacing: Address Map Generation EE438 Fall2 Class 6 Pari vallal Kannan Center for Integrated Circuits and Systems University of Texas at Dallas 85 Interfacing Address Mapping Use address bus and

More information

Logic Chip Tester User Manual SW Version /8/2012. Chapter 1 Introduction/Background

Logic Chip Tester User Manual SW Version /8/2012. Chapter 1 Introduction/Background Logic Chip Tester User Manual SW Version 1.00 4/8/2012 Chapter 1 Introduction/Background In the 1970 s and 80 s, many digital devices were designed using a number of 14, 16, 20, or perhaps 24- pin logic

More information

May the Schwartz be with you!

May the Schwartz be with you! Department of Electrical & Computer Engineering Tuesday 27 June 17 29-Sep-17 3:54 PM Page 1/13 Exam 1 Instructions: Turn off cell phones beepers and other noise making devices. Show all work on the front

More information

Chapter Operation Pinout Operation 35

Chapter Operation Pinout Operation 35 68000 Operation 35 Chapter 6 68000 Operation 6-1. 68000 Pinout We will do no construction in this chapter; instead, we will take a detailed look at the individual pins of the 68000 and what they do. Fig.

More information

Chapter Two - SRAM 1. Introduction to Memories. Static Random Access Memory (SRAM)

Chapter Two - SRAM 1. Introduction to Memories. Static Random Access Memory (SRAM) 1 3 Introduction to Memories The most basic classification of a memory device is whether it is Volatile or Non-Volatile (NVM s). These terms refer to whether or not a memory device loses its contents when

More information

Lab 16: Data Busses, Tri-State Outputs and Memory

Lab 16: Data Busses, Tri-State Outputs and Memory Lab 16: Data Busses, Tri-State Outputs and Memory UC Davis Physics 116B Rev. 0.9, Feb. 2006 1 Introduction 1.1 Data busses Data busses are ubiquitous in systems which must communicate digital data. Examples

More information

An 80C31-Controlled Power Supply

An 80C31-Controlled Power Supply THE MAGAZINE FOR COMPUTER APPLICATIONS An 80C31-Controlled Power Supply Even if you re a novice, it s pretty easy to control the power supplied to the circuits you re working on. In this article, Noel

More information

Module 3B: Arduino as Power Supply

Module 3B: Arduino as Power Supply Name/NetID: Teammate/NetID: Module 3B: Laboratory Outline As you work on through the labs during the semester and some of the modules you may want to continue experimenting at home. Luckily the microprocessor

More information

DIY KIT 123. ATMEL 89xxxx PROGRAMMER

DIY KIT 123. ATMEL 89xxxx PROGRAMMER INTRODUCTION This kit is a powerful programmer for the Atmel 8051 family of microcontrollers. It supports the following devices: 89C1051, 89C2051 and 89C4051 89C51, 89LV51 89C52, 89LV52 89C55, 89LV55 89S8252,

More information

DS2405. Addressable Switch PIN ASSIGNMENT

DS2405. Addressable Switch PIN ASSIGNMENT www.maxim-ic.com FEATURES Open-drain PIO pin is controlled by matching 64-bit, laser-engraved registration number associated with each device Logic level of open drain output can be determined over 1-Wire

More information

COS 116 The Computational Universe Laboratory 7: Digital Logic I

COS 116 The Computational Universe Laboratory 7: Digital Logic I COS 116 The Computational Universe Laboratory 7: Digital Logic I In this lab you ll construct simple combinational circuits in software, using a simulator, and also in hardware, with a breadboard and silicon

More information

1-2 Chapter 1: The Beboputer Microcomputer

1-2 Chapter 1: The Beboputer Microcomputer 1-2 Chapter 1: The Beboputer Microcomputer The Beboputer microcomputer In its broadest sense, a computer is a device that can accept information from the outside world, process that information using logical

More information

How To: Replace the ZX Spectrum 48 ROM with an EPROM By: Marcelo (inspired by an article in spanish Microhobby #79, p22)

How To: Replace the ZX Spectrum 48 ROM with an EPROM By: Marcelo (inspired by an article in spanish Microhobby #79, p22) How To: Replace the ZX Spectrum 48 ROM with an EPROM By: Marcelo (inspired by an article in spanish Microhobby #79, p22) Why: First off, why on earth would one want to do such a thing? Well, there are

More information

3. The MC6802 MICROPROCESSOR

3. The MC6802 MICROPROCESSOR 3. The MC6802 MICROPROCESSOR This chapter provides hardware detail on the Motorola MC6802 microprocessor to enable the reader to use of this microprocessor. It is important to learn the operation and interfacing

More information

BUILDING BLOCKS OF A BASIC MICROPROCESSOR. Part 1 PowerPoint Format of Lecture 3 of Book

BUILDING BLOCKS OF A BASIC MICROPROCESSOR. Part 1 PowerPoint Format of Lecture 3 of Book BUILDING BLOCKS OF A BASIC MICROPROCESSOR Part PowerPoint Format of Lecture 3 of Book Decoder Tri-state device Full adder, full subtractor Arithmetic Logic Unit (ALU) Memories Example showing how to write

More information

Address connections Data connections Selection connections

Address connections Data connections Selection connections Interface (cont..) We have four common types of memory: Read only memory ( ROM ) Flash memory ( EEPROM ) Static Random access memory ( SARAM ) Dynamic Random access memory ( DRAM ). Pin connections common

More information

CPE/EE 421/521 Fall 2004 Chapter 4 The CPU Hardware Model. Dr. Rhonda Kay Gaede UAH. The CPU Hardware Model - Overview

CPE/EE 421/521 Fall 2004 Chapter 4 The CPU Hardware Model. Dr. Rhonda Kay Gaede UAH. The CPU Hardware Model - Overview CPE/EE 421/521 Fall 2004 Chapter 4 The 68000 CPU Hardware Model Dr. Rhonda Kay Gaede UAH Fall 2004 1 The 68000 CPU Hardware Model - Overview 68000 interface Timing diagram Minimal configuration using the

More information

Sense Amplifiers 6 T Cell. M PC is the precharge transistor whose purpose is to force the latch to operate at the unstable point.

Sense Amplifiers 6 T Cell. M PC is the precharge transistor whose purpose is to force the latch to operate at the unstable point. Announcements (Crude) notes for switching speed example from lecture last week posted. Schedule Final Project demo with TAs. Written project report to include written evaluation section. Send me suggestions

More information

USB-4303 Specifications

USB-4303 Specifications Specifications Document Revision 1.0, February, 2010 Copyright 2010, Measurement Computing Corporation Typical for 25 C unless otherwise specified. Specifications in italic text are guaranteed by design.

More information

Building and using JasperMIDI

Building and using JasperMIDI Building and using JasperMIDI Table of Contents Introduction... Bill Of Materials... 2 Building Choices... 3 Construction... 4 Installing in a Jasper enclosure... 5 Standalone use... 6 Using JasperMIDI...

More information

MICROPROCESSOR AND MICROCONTROLLER BASED SYSTEMS

MICROPROCESSOR AND MICROCONTROLLER BASED SYSTEMS MICROPROCESSOR AND MICROCONTROLLER BASED SYSTEMS UNIT I INTRODUCTION TO 8085 8085 Microprocessor - Architecture and its operation, Concept of instruction execution and timing diagrams, fundamentals of

More information

2. List the five interrupt pins available in INTR, TRAP, RST 7.5, RST 6.5, RST 5.5.

2. List the five interrupt pins available in INTR, TRAP, RST 7.5, RST 6.5, RST 5.5. DHANALAKSHMI COLLEGE OF ENGINEERING DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING EE6502- MICROPROCESSORS AND MICROCONTROLLERS UNIT I: 8085 PROCESSOR PART A 1. What is the need for ALE signal in

More information

Electronics & Control

Electronics & Control Engineering Science Electronics & Control Logic Page 2 Introduction Electronic circuits can be use to control a huge variety of systems but in each case there are IN- PUTS, PROCESSES and OUTPUTS. In this

More information

National Semiconductor Application Note 368 Larry Wakeman March 1984

National Semiconductor Application Note 368 Larry Wakeman March 1984 An Introduction to and Comparison of 54HCT 74HCT TTL Compatible CMOS Logic The 54HC 74HC series of high speed CMOS logic is unique in that it has a sub-family of components designated 54HCT 74HCT Generally

More information

A microprocessor-based system

A microprocessor-based system 7 A microprocessor-based system How simple can a microprocessor-based system actually be? It must obviously contain a microprocessor otherwise it is simply another electronic circuit. A microprocessor

More information

Chapter 2: Fundamentals of a microprocessor based system

Chapter 2: Fundamentals of a microprocessor based system Chapter 2: Fundamentals of a microprocessor based system Objectives Learn about the basic structure of microprocessor systems Learn about the memory read/write timing diagrams. Learn about address decoding

More information

Lab 0: Wire Wrapping Project: Counter Board

Lab 0: Wire Wrapping Project: Counter Board Lab 0: Wire Wrapping Project: Counter Board September 3, 2008 In this experiment, you will build a simple counter circuit that can be plugged into your breadboard. It will provide a set of TTL output signals

More information

SECURE DIGITAL ACCESS SYSTEM USING IBUTTON

SECURE DIGITAL ACCESS SYSTEM USING IBUTTON SECURE DIGITAL ACCESS SYSTEM USING IBUTTON Access control forms a vital link in a security chain. Here we describe a secure digital access system using ibutton that allows only authorised persons to access

More information

FPGA Programming Technology

FPGA Programming Technology FPGA Programming Technology Static RAM: This Xilinx SRAM configuration cell is constructed from two cross-coupled inverters and uses a standard CMOS process. The configuration cell drives the gates of

More information

CSC 258 lab notes, Fall 2003

CSC 258 lab notes, Fall 2003 CSC 258 lab notes, Fall 2003 Instructor: E. R. C. Hehner Lab demonstrators: Nicolas Kokkalis, Andrés Lagar Cavilla Successful completion of the three graded labs in this course involves a significant amount

More information

EE251: Thursday November 15

EE251: Thursday November 15 EE251: Thursday November 15 Major new topic: MEMORY A KEY topic HW #7 due today; HW #8 due Thursday, Nov. 29 Lab #8 finishes this week; due week of Nov. 26 All labs MUST be completed/handed-in by Dec.

More information

Digital Electronics & Computer Engineering (E85)

Digital Electronics & Computer Engineering (E85) Digital Electronics & Computer Engineering (E85) Lab 4: Thunderbird Turn Signal Introduction In this lab, you will design a finite state machine to control the taillights of a 1965 Ford Thunderbird 1 and

More information

University of Florida EEL 4744 Summer 2014 Dr. Eric M. Schwartz Department of Electrical & Computer Engineering 1 July Oct-14 6:41 PM

University of Florida EEL 4744 Summer 2014 Dr. Eric M. Schwartz Department of Electrical & Computer Engineering 1 July Oct-14 6:41 PM Page 1/14 Exam 1 Instructions: First Name Turn off cell phones beepers and other noise making devices. Show all work on the front of the test papers. If you need more room make a clearly indicated note

More information

An Overview of Microprocessor The first question comes in a mind "What is a microprocessor?. Let us start with a more familiar term computer. A digital computer is an electronic machine capable of quickly

More information

1 MALP ( ) Unit-1. (1) Draw and explain the internal architecture of 8085.

1 MALP ( ) Unit-1. (1) Draw and explain the internal architecture of 8085. (1) Draw and explain the internal architecture of 8085. The architecture of 8085 Microprocessor is shown in figure given below. The internal architecture of 8085 includes following section ALU-Arithmetic

More information

University of Florida EEL 3744 Spring 2018 Dr. Eric M. Schwartz. Good luck!

University of Florida EEL 3744 Spring 2018 Dr. Eric M. Schwartz. Good luck! Page 1/13 Exam 2 Relax! Go Gators! Good luck! First Name Instructions: Turn off all cell phones and other noise making devices and put away all electronics. Show all work on the front of the test papers.

More information

CSCE 312 Lab manual. Lab 4 - Computer Organization and Data Path Design. Instructor: Dr. Yum. Fall 2016

CSCE 312 Lab manual. Lab 4 - Computer Organization and Data Path Design. Instructor: Dr. Yum. Fall 2016 CSCE 312 Lab manual Lab 4 - Computer Organization and Data Path Design Instructor: Dr. Yum Fall 2016 Department of Computer Science & Engineering Texas A&M University Chapter 5: Computer Organization and

More information

Page 1 of 18 Hardware Training Tools Data Acquisition I/O Cards Development Tools Pic Tutor 8255 CHIPS Software CAD Education Consulting Downloads PRICE LIST Corporate About AMS Chronology Contact Sales

More information

Lab Overview. Lab Details. ECEN 4613/5613 Embedded System Design Week #1 Fall 2008 Lab #1 8/27/2008

Lab Overview. Lab Details. ECEN 4613/5613 Embedded System Design Week #1 Fall 2008 Lab #1 8/27/2008 ECEN 4613/5613 Embedded System Design Week #1 Fall 2008 Lab #1 8/27/2008 Lab Overview In this lab assignment, you will do the following: Learn how to use the ASM51 (or AS31) assembler and Emily52 simulator.

More information

Lab 4: Digital Electronics Innovation Fellows Program Boot Camp Prof. Steven S. Saliterman

Lab 4: Digital Electronics Innovation Fellows Program Boot Camp Prof. Steven S. Saliterman Lab 4: Digital Electronics Innovation Fellows Program Boot Camp Prof. Steven S. Saliterman Exercise 4-1: Familiarization with Lab Box Contents & Reference Books 4-1-1 CMOS Cookbook (In the bookcase in

More information

CHAPTER 5. Voltage Regulator

CHAPTER 5. Voltage Regulator CHAPTER 5 Voltage Regulator In your robot, the energy is derived from batteries. Specifically, there are two sets of batteries wired up to act as voltage sources; a 9V battery, and two 1.5V batteries in

More information

Cinematronics CPU Board Revision B to K Conversion

Cinematronics CPU Board Revision B to K Conversion http://www.biltronix.com Cinematronics CPU Board Revision B to K Conversion Introduction: Cinematronics manufactured several arcade video games from 977 through 980 that were based on a specific CPU board

More information

The Microcontroller Idea Book

The Microcontroller Idea Book The following material is excerpted from: The Microcontroller Idea Book Circuits, Programs, & Applications featuring the 8052-BASIC Microcontroller by Jan Axelson copyright 1994, 1997 by Jan Axelson ISBN

More information

ES 210 Lab. Jack Ou, Ph.D.

ES 210 Lab. Jack Ou, Ph.D. ES 210 Lab Jack Ou, Ph.D. April 30, 2013 2 Contents 1 555 Timer 5 1.1 A Monostable Circuit...................... 5 1.1.1 Parts............................ 5 1.1.2 A Monostable Circuit..................

More information

Microprocessors/Microcontrollers

Microprocessors/Microcontrollers Microprocessors/Microcontrollers A central processing unit (CPU) fabricated on one or more chips, containing the basic arithmetic, logic, and control elements of a computer that are required for processing

More information

80C51GB, 83C51GB, 87C51GB SPECIFICATION UPDATE

80C51GB, 83C51GB, 87C51GB SPECIFICATION UPDATE 80C51GB, 83C51GB, 87C51GB SPECIFICATION UPDATE Release Date: December, 1996 Order Number: 272880-003 The 80C51GB, 83C51GB, 87C51GB may contain design defects or errors known as errata. Characterized errata

More information

COMP3221: Microprocessors and. and Embedded Systems. Overview. Lecture 23: Memory Systems (I)

COMP3221: Microprocessors and. and Embedded Systems. Overview. Lecture 23: Memory Systems (I) COMP3221: Microprocessors and Embedded Systems Lecture 23: Memory Systems (I) Overview Memory System Hierarchy RAM, ROM, EPROM, EEPROM and FLASH http://www.cse.unsw.edu.au/~cs3221 Lecturer: Hui Wu Session

More information

Z8 Pod Adapter. for the. Fluke 9000-Series Troubleshooter

Z8 Pod Adapter. for the. Fluke 9000-Series Troubleshooter Z8 Pod Adapter for the Fluke 9000-Series Troubleshooter May 23, 1984 Table of Contents 1. Conventions Used in This Document... 1 2. Overview... 2 3. Pod Adapter Setup... 3 3.1. Drivability Checking Control

More information

The Universal Translator

The Universal Translator Universal Translator - Application and Installation! 1 The Universal Translator The Universal Translator! 1 Examples and Guidelines! 2 Application Notes! 4 Installing and Troubleshooting Your Translator!

More information

Robotic Systems ECE 401RB Fall 2006

Robotic Systems ECE 401RB Fall 2006 The following notes are from: Robotic Systems ECE 401RB Fall 2006 Lecture 13: Processors Part 1 Chapter 12, G. McComb, and M. Predko, Robot Builder's Bonanza, Third Edition, Mc- Graw Hill, 2006. I. Introduction

More information

EE4380 Microprocessor Design Project

EE4380 Microprocessor Design Project EE4380 Microprocessor Design Project Fall 2002 Class 1 Pari vallal Kannan Center for Integrated Circuits and Systems University of Texas at Dallas Introduction What is a Microcontroller? Microcontroller

More information

FPGA. Logic Block. Plessey FPGA: basic building block here is 2-input NAND gate which is connected to each other to implement desired function.

FPGA. Logic Block. Plessey FPGA: basic building block here is 2-input NAND gate which is connected to each other to implement desired function. FPGA Logic block of an FPGA can be configured in such a way that it can provide functionality as simple as that of transistor or as complex as that of a microprocessor. It can used to implement different

More information

Lecture Objectives. Introduction to Computing Chapter 0. Topics. Numbering Systems 04/09/2017

Lecture Objectives. Introduction to Computing Chapter 0. Topics. Numbering Systems 04/09/2017 Lecture Objectives Introduction to Computing Chapter The AVR microcontroller and embedded systems using assembly and c Students should be able to: Convert between base and. Explain the difference between

More information

PCMCIA. Application Note 8 MEMBER COMPANY. Pin Configuration. General Description. MIC2557 ( 1 2 MIC2558) Block Diagram

PCMCIA. Application Note 8 MEMBER COMPANY. Pin Configuration. General Description. MIC2557 ( 1 2 MIC2558) Block Diagram Application Note Application Note Interfacing the MIC/ to PCMCIA Controllers by Bob Wolbert General Description The MIC and MIC provide "Programming and Peripheral" voltage (V PP ) switching for PCMCIA

More information

Locktronics PICmicro getting started guide

Locktronics PICmicro getting started guide Page 2 getting started guide What you need to follow this course 2 Using the built-in programs 3 Create your own programs 4 Using Flowcode - your first program 5 A second program 7 A third program 8 Other

More information

UNIT 3 THE 8051-REAL WORLD INTERFACING

UNIT 3 THE 8051-REAL WORLD INTERFACING UNIT 3 THE 8051-REAL WORLD INTERFACING 8031/51 INTERFACING TO EXTERNAL MEMORY The number of bits that a semiconductor memory chip can store is called chip capacity It can be in units of Kbits (kilobits),

More information

EECS 140 Laboratory Exercise 5 Prime Number Recognition

EECS 140 Laboratory Exercise 5 Prime Number Recognition 1. Objectives EECS 140 Laboratory Exercise 5 Prime Number Recognition A. Become familiar with a design process B. Practice designing, building, and testing a simple combinational circuit 2. Discussion

More information

DIGITAL SYSTEM FUNDAMENTALS (ECE421) DIGITAL ELECTRONICS FUNDAMENTAL (ECE422)

DIGITAL SYSTEM FUNDAMENTALS (ECE421) DIGITAL ELECTRONICS FUNDAMENTAL (ECE422) COURSE / CODE DIGITAL SYSTEM FUNDAMENTALS (ECE421) DIGITAL ELECTRONICS FUNDAMENTAL (ECE422) Memory In computing, memory refers to the computer hardware devices used to store information for immediate use

More information

How to Implement I 2 C Serial Communication Using Intel MCS-51 Microcontrollers

How to Implement I 2 C Serial Communication Using Intel MCS-51 Microcontrollers APPLICATION NOTE How to Implement I 2 C Serial Communication Using Intel MCS-51 Microcontrollers SABRINA D QUARLES APPLICATIONS ENGINEER April 1993 Order Number 272319-001 Information in this document

More information

Owner s Hardware Service Manual Frank Control Computer System

Owner s Hardware Service Manual Frank Control Computer System Owner s Hardware Service Manual Frank Control Computer System Revision 0105 ABOUT THIS MANUAL This section describes the contents of this manual and how to use this manual effectively. It was designed

More information

Lecture (02) PIC16F84 (I)

Lecture (02) PIC16F84 (I) Lecture (02) PIC16F84 (I) By: Dr. Ahmed ElShafee ١ Review of Memory Technologies The PIC 16 Series PIC 16F84A The PIC 16F84A Memory The Oscillator Instruction Cycle Power up and Reset Parallel ports Technical

More information

SLCD1-IC Serial LCD Processor

SLCD1-IC Serial LCD Processor SLCD1-IC Serial LCD Processor Diagram 1: LCD Pin 13 LCD Pin 14 1 2 18 17 LCD Pin 12 LCD Pin 11 N/C 3 16 8 MHz Osc DC 4 15 8 MHz Osc Ground 5 14 DC Serial Input True/Inverted 6 7 13 12 LCD Pin 6 LCD Pin

More information

Sketch A Transistor-level Schematic Of A Cmos 3-input Xor Gate

Sketch A Transistor-level Schematic Of A Cmos 3-input Xor Gate Sketch A Transistor-level Schematic Of A Cmos 3-input Xor Gate DE09 DIGITALS ELECTRONICS 3 (For Mod-m Counter, we need N flip-flops (High speeds are possible in ECL because the transistors are used in

More information

MICROPROCESSOR LAB PROJECT EC 316 MADE BY:-

MICROPROCESSOR LAB PROJECT EC 316 MADE BY:- MICROPROCESSOR LAB PROJECT EC 316 MADE BY:- SAURABH VERMA 159/EC/13 SHREYANSH PATIYAL 167/EC/13 FACULTY ADVISOR:- PROF. DHANANJAY V. GADRE ACKNOWLEDGEMENT We would sincerely like to thank Associate Prof.

More information

Chapter 13 Direct Memory Access and DMA-Controlled I/O

Chapter 13 Direct Memory Access and DMA-Controlled I/O Chapter 13 Direct Memory Access and DMA-Controlled I/O The DMA I/O technique provides direct access to the memory while the microprocessor is temporarily disabled This allows data to be transferred between

More information

ME456: Mechatronics. Prof. Clark Radcliffe. Do you have the knack? Joonho Lee, TA. What s Mechatronics? Mechatronics

ME456: Mechatronics. Prof. Clark Radcliffe. Do you have the knack? Joonho Lee, TA. What s Mechatronics? Mechatronics ME456: Mechatronics Prof. Clark J. Radcliffe Mechanical Engineering Michigan State University Prof. Clark Radcliffe Office: 2445 Engineering Phone: 355-5198 Email: radcliff@egr.msu.edu Web: http://www.egr.msu.edu/classes/me456/radcliff/

More information

DS1238A MicroManager PIN ASSIGNMENT PIN DESCRIPTION V BAT V CCO V CC

DS1238A MicroManager PIN ASSIGNMENT PIN DESCRIPTION V BAT V CCO V CC MicroManager www.dalsemi.com FEATURES Holds microprocessor in check during power transients Halts and restarts an out-of-control microprocessor Warns microprocessor of an impending power failure Converts

More information

commodore semiconductor group NMOS 950 Rittenhouse Rd., Norristown, PA Tel.: 215/ TWX: 510/ (MEMORY, I/O, TIMER ARRAY)

commodore semiconductor group NMOS 950 Rittenhouse Rd., Norristown, PA Tel.: 215/ TWX: 510/ (MEMORY, I/O, TIMER ARRAY) commodore semiconductor group NMOS 950 Rittenhouse Rd., Norristown, PA 19403 Tel.: 215/666-7950 TWX: 510/660-4168 6532 (MEMORY, I/O, TIMER ARRAY) THE 6532 CONCEPT- The 6532 is designed to operate in conjunction

More information

Introduction to Microcontrollers

Introduction to Microcontrollers Introduction to Microcontrollers Embedded Controller Simply an embedded controller is a controller that is embedded in a greater system. One can define an embedded controller as a controller (or computer)

More information

Interfacing Memory Chips on the 6812 Processor Bus. Student's name & ID: Partner's name & ID: Your Section number / TA's name

Interfacing Memory Chips on the 6812 Processor Bus. Student's name & ID: Partner's name & ID: Your Section number / TA's name MPS Memory Interfacing Lab xercise Interfacing Memory Chips on the Processor Bus Student's name & I: Partner's name & I: Your Section number / TA's name Notes: You must work on this assignment with your

More information

QUASAR KIT No DIGITAL DOWN TIMER 99 MIN WITH PIC

QUASAR KIT No DIGITAL DOWN TIMER 99 MIN WITH PIC QUASAR KIT No 1173 - DIGITAL DOWN TIMER 99 MIN WITH PIC KIT 1173 is a digital countdown timer based on a micro controller, thus securing reliability and excellent operation under any circumstances. It

More information

Backing Up Firmware from Dallas Semiconductor DS5002FP

Backing Up Firmware from Dallas Semiconductor DS5002FP Backing Up Firmware from Dallas Semiconductor DS5002FP Peter Wilhelmsen Morten Shearman Kirkegaard 2017-07-16 Abstract Secure embedded systems (e.g. arcade games) may use a Dallas Semiconductor DS5002FP

More information

ENGR 3410: MP #1 MIPS 32-bit Register File

ENGR 3410: MP #1 MIPS 32-bit Register File ENGR 3410: MP #1 MIPS 32-bit Register File Due: Before class, September 23rd, 2008 1 Introduction The purpose of this machine problem is to create the first large component of our MIPS-style microprocessor

More information

This presentation will..

This presentation will.. Component Identification: Digital Introduction to Logic Gates and Integrated Circuits Digital Electronics 2014 This presentation will.. Introduce transistors, logic gates, integrated circuits (ICs), and

More information

MODULE 12 APPLICATIONS OF MEMORY DEVICES:

MODULE 12 APPLICATIONS OF MEMORY DEVICES: Introduction to Digital Electronic Design, Module 12 Application of Memory Devices 1 MODULE 12 APPLICATIONS OF MEMORY DEVICES: CONCEPT 12-1: REVIEW OF HOW MEMORY DEVICES WORK Memory consists of two parts.

More information

Manual Main PCB Small-MIDI 4

Manual Main PCB Small-MIDI 4 Index PARTLIST MAIN PCB... 2 INTRODUCTION... 3 GENERAL... 3 THE CIRCUIT... 3 ASSEMBLY KIT... 4 ASSEMBLY OF THE PCB... 4 An important tip...... 4 ASSEMBLY... 4 THE CONNECTORS... 4 Power supply J1... 4 IDC

More information

DS1305 Serial Alarm Real Time Clock (RTC)

DS1305 Serial Alarm Real Time Clock (RTC) Serial Alarm Real Time Clock (RTC) www.dalsemi.com FEATURES Real time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year compensation valid up to 2100

More information

Control Unit: The control unit provides the necessary timing and control Microprocessor resembles a CPU exactly.

Control Unit: The control unit provides the necessary timing and control Microprocessor resembles a CPU exactly. Unit I 8085 and 8086 PROCESSOR Introduction to microprocessor A microprocessor is a clock-driven semiconductor device consisting of electronic logic circuits manufactured by using either a large-scale

More information

Microprocessors and Microcontrollers (EE-231)

Microprocessors and Microcontrollers (EE-231) Microprocessors and Microcontrollers (EE-231) Main Objectives 8088 and 80188 8-bit Memory Interface 8086 t0 80386SX 16-bit Memory Interface I/O Interfacing I/O Address Decoding More on Address Decoding

More information

9100 Series. Card Edge Fixture Kit. P/N September , John Fluke Mfg. Co., Inc. All rights reserved. Litho in U.S.A.

9100 Series. Card Edge Fixture Kit. P/N September , John Fluke Mfg. Co., Inc. All rights reserved. Litho in U.S.A. 9100 Series Card Edge Fixture Kit P/N 830349 September 1987 1987, John Fluke Mfg. Co., Inc. All rights reserved. Litho in U.S.A. CONTENTS Section Title Page 1. Introduction......................................

More information

CDP1802 CPU Test board User's Manual 2015-Sep-11 Ver.1.0 by molka

CDP1802 CPU Test board User's Manual 2015-Sep-11 Ver.1.0 by molka RCA CDP180x CDP1802 CPU Test board User's Manual 2015-Sep-11 Ver.1.0 by molka Overview The CDP1802 test board is intended to test the working condition of RCA CDP1802 COSMAC and compatible CPUs. The board

More information

GPIO-MM User Manual. FPGA-based PC/104 Counter/Timer and Digital I/O Module. User Manual v1.0 Personality 0x22

GPIO-MM User Manual. FPGA-based PC/104 Counter/Timer and Digital I/O Module. User Manual v1.0 Personality 0x22 GPIO-MM User Manual FPGA-based PC/104 Counter/Timer and Digital I/O Module User Manual v1.0 Personality 0x22 Copyright 2006 1255 Terra Bella Ave. Mountain View, CA 94043 Tel (650) 810-2500 Fax (650) 810-2525

More information

8051 Microcontroller

8051 Microcontroller 8051 Microcontroller The 8051, Motorola and PIC families are the 3 leading sellers in the microcontroller market. The 8051 microcontroller was originally developed by Intel in the late 1970 s. Today many

More information

MICROCONTROLLER AND PLC LAB-436 SEMESTER-5

MICROCONTROLLER AND PLC LAB-436 SEMESTER-5 MICROCONTROLLER AND PLC LAB-436 SEMESTER-5 Exp:1 STUDY OF MICROCONTROLLER 8051 To study the microcontroller and familiarize the 8051microcontroller kit Theory:- A Microcontroller consists of a powerful

More information

Allmost all systems contain two main types of memory :

Allmost all systems contain two main types of memory : Memory Interface Allmost all systems contain two main types of memory : read-only memory (ROM) system software and permanent system data random access memory (RAM) or read/write memory application software

More information

Computer Systems. Binary Representation. Binary Representation. Logical Computation: Boolean Algebra

Computer Systems. Binary Representation. Binary Representation. Logical Computation: Boolean Algebra Binary Representation Computer Systems Information is represented as a sequence of binary digits: Bits What the actual bits represent depends on the context: Seminar 3 Numerical value (integer, floating

More information

Lecture-9 Intel 8085 Microprocessor It is a 40-pin DIP(Dual in package) chip, base on NMOS technology, on a single chip of silicon.

Lecture-9 Intel 8085 Microprocessor It is a 40-pin DIP(Dual in package) chip, base on NMOS technology, on a single chip of silicon. Lecture-9 Intel 8085 Microprocessor It is a 40-pin DIP(Dual in package) chip, base on NMOS technology, on a single chip of silicon. It requires a single +5v supply between Vcc at pin no 40 and GND at pin

More information

8-bit Microcontroller with 8K Bytes In-System Programmable Flash AT89S52

8-bit Microcontroller with 8K Bytes In-System Programmable Flash AT89S52 Features Compatible with MCS -51 Products 8K Bytes of In-System Programmable (ISP) Flash Memory Endurance: 10,000 Write/Erase Cycles 4.0V to 5.5V Operating Range Fully Static Operation: 0 Hz to 33 MHz

More information