Microprocessors and motherboards, Computer Engineering

Module Learning Outcomes for This Assignment

1. Design and minimize a digital electronic circuit using logic devices from ttl and cmos.

2. Explain the hardware design of a simple microprocessor based product.

3. Design and develop an assembly language program.

Digital and embedded software (real-time systems) 1

You are required to complete the following tasks which cover both the areas of microprocessor electronics and assembly language programming. The assignment consists of a research essay into microprocessor interfaces and a developing an assembly language programme to produce a variable PWM wave

Task1: Essay

Explain, discuss and contrast with the aid of diagrams the differences between the following bus systems used within Digital/Real time and CPU architecture systems

a) IEEE 488 Bus system


c) P4 Front side Bus

d) i7 Front side Bus

Please note that all work is to be submitted electronically through Blackboard and will be checked for plagiarism between students and download material. You may be requested to attend a VIVA (Short presentation and question session) to check the Authenticity of your work. You work should use Harvard notation should be at least 10 sides of A4

 Task2: Programming task and demonstration

Write a modular 68hc11 assembly language program which produces a variable PWM waveform using the assembler in D10

The following parameters as illustrated in the diagram below should be adjusted by using the keyboard/VDU. Please examine the marking scheme carefully to help you design your program correctly.

Microprocessors and Motherboards

The heart of the modern electronic system is the microprocessor e.g. the video, sound, game consoles, portable phones and domestic appliances. Let us consider the heart of a home computer.

The home computer consists of many peripheral devices, such as Disk drives, DVD drives, power supplies specialized PC cards for graphics, movies, sound etc. These devices centre about the motherboard, the heart of the system. This provides the interconnection for the disk drives, power supplies, the peripheral cards and links them to four key devices: namely the microprocessor, the system RAM, the IO controller and finally the Basic Input Output system (BIOS) EPROM as seen below

Within other modules you have used high level programs to generate movies, sound, and control of other devices. In order to fully understand the working of modern microprocessor products we must take a closer look at the operation of these devices and program using binary and assembly language to understand the role of the EPROM on the motherboard. The microprocessor which we have chosen to look at in more details is the Motorola MC68HC11, one of the current 8 bit CPU's.

Even though this is a micro-controller, it helps to introduce you to the complex working of the

Pentium and Pentium II on a PC and yet enables you to easy understand the 8 bit micro-controllers used on many home products.

Posted Date: 3/12/2013 3:12:50 AM | Location : United States

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