Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

Answer the following problems

problem 1)a) In addition to data transfer operation, mention and describe the different functions supported by the instruction set of normal general purpose processors/microcontrollers. Give relevant exs for each category.

b) Mention the important points to be considered while interfacing external memory to processor/controller. Also describe the steps involved in interfacing.    

c) Describe in brief the architecture of PIC16F877 microcontroller.    

problem 2)a) With the help of a relevant diagram, describe the long distance communication between two computer terminals via telephone lines, using MODEMs. Describe clearly the functions of associated handshake signals.    

b) With the help of a relevant timing diagram, describe the ISA bus protocol for memory mapped I/O read operation with no wait states.    

c) Describe USB bus specifications and protocol with respect to serial communication in embedded systems.

problem 3) For the ADC section of 68HC11 microcontroller, Vref pin is connected to 5V and Gnd pin is grounded. After a certain analog input is converted to digital, the contents of ADRESULT _HI and ADRESULT _LO were found to be F7H and 86H respectively. Determine the analog input value and the channel to which the analog input was applied.

b) What do you mean by watchdog timer? What are the merits and demerits of using watchdog timer facility? Describe the working of watchdog timer facility of PIC16F877 microcontroller.    

c) With the help of a relevant diagram, describe the daisy chain arbitration scheme with respect to handling multiple interrupt requests from peripherals via a single interrupt line of the processor.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M96281

Have any Question? 


Related Questions in Mechanical Engineering

Hydraulic circuit pressure dropthe hydraulic circuit shown

Hydraulic Circuit Pressure Drop The hydraulic circuit shown involves a pump and four pressure restrictions. Assuming the reservoir is at atmospheric pressure and the flow is at steady-state, determine the gage pressures ...

Experiment title heat engine experimentacademic in charge

Experiment title: Heat Engine Experiment Academic in charge of experiment: Experiment duration: The standard scheduled time for this experiment is 90 minutes for 3 groups (A, B, C) of 6 students. Each group undertakes ex ...

The vibrational partition function for an unknown diatomic

The vibrational partition function for an unknown diatomic molecule at 300 K is 2.33. Find the maximum value of the vibrational constant ve in cm-1 such that at least 5% of the molecules in a 300 K sample will be found i ...

Define nut dilation why can it be a problemcompute the

Define nut dilation. Why can it be a problem? Compute the approximate thermal expansion of a 1=2-13 2, SAE J429 GR 8 bolt when it is subjected to a temperature rise of 1508F (e.g., from 708F to 2208F) ? Define stress rel ...

Each wood railroad tie supports part of the weight of a

Each wood railroad tie supports part of the weight of a train (plus the relatively small weight of a section of rail). This is modeled with two point loads representing the force of the rail on the tie. The reaction from ...

1 at 60degc the surface tension of water is 00662 nm and

1. At 60°C the surface tension of water is 0.0662 N/m and that of mercury is 0.47 N/m. Determine the capillary height changes in these two fluids when they are in contact with air in a glass tube of diameter 0.55 mm. Con ...

Problem -a piston at one end of a gas filled circular tube

Problem - A piston at one end of a gas filled circular tube of area S oscillates with real-valued velocity: U p (t) = U 1 cos(ω 1 t) + U 2 sin(ω 2 t) Note that two oscillation frequencies are present. The other end of th ...

Problem -an aluminum extrusion was created in the shape at

Problem - An aluminum extrusion was created in the shape at the right as shown with the origin at the lower left corner. Show all work in finding the centroid (4). Find moments of inertia with respect to the x and y axes ...

If the speed of the shaft is doubled in given problem what

If the speed of the shaft is doubled in given Problem, what will be the percentage increase in the heat transferred from the bearing? Assume that the bearing remains at constant temperature. Problem An automobile cranksh ...

1 a vertical cylindrical tank having a base diameter of 10

1. A vertical cylindrical tank having a base diameter of 10 m and a height of 5 m is filled to the top with water at 20°C. How much water will overflow if the water is heated to 80°C? 2. A liquid in a cylinder has a volu ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro