the-8051-microcontroller digital-electronics question and answers -Page 6

CuriousTab

CuriousTab

C Programming C# Programming C++ Programming Database Java Programming Networking

Biochemical Engineering Biochemistry Biotechnology Chemical Engineering Civil Engineering Computer Science Digital Electronics Electrical Engineering Electronics Electronics and Communication Engineering Mechanical Engineering Microbiology Technical Drawing

Current Affairs General Knowledge

Data Interpretation Logical Reasoning Non Verbal Reasoning Verbal Ability Verbal Reasoning

AIEEE Bank Exams CAT GATE IIT JEE TOEFL

Analyst Bank PO Database Administrator IT Trainer Network Engineer Project Manager Software Architect

The 8051 Microcontroller problems

1. The address space of the 8051 is divided into four distinct areas: internal data, external data, internal code, and external code.
Options
A. True
B. False

Correct Answer: True

2. A label is used to name a single line of code.
Options
A. True
B. False

Correct Answer: True

3. Which of the following instructions will move the contents of register 3 to the accumulator?
Options
A. MOV 3R, A
B. MOV R3, A
C. MOV A, R3
D. MOV A, 3R

Correct Answer: MOV A, R3

4. The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.
Options
A. True
B. False

Correct Answer: False

5. Different instruction sets must make up for the various members of the 8051 family.
Options
A. True
B. False

Correct Answer: False

6. The RST pin requires a HIGH to reset the 8051 microcontroller.
Options
A. True
B. False

Correct Answer: True

7. Up to 65K of code memory and 65K of data memory can be added to any of the 8051 family members.
Options
A. True
B. False

Correct Answer: False

8. In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.
Options
A. True
B. False

Correct Answer: True

9. Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.
Options
A. True
B. False

Correct Answer: False

10. Analog output current must be converted into a usable voltage. To perform this current-to-voltage conversion a 700 op amp may be used.
Options
A. True
B. False

Correct Answer: True

First 2 3 4 5 6 7

More in Digital Electronics:

Boolean Algebra and Logic Simplification Code Converters and Multiplexers Combinational Logic Analysis Combinational Logic Circuits Computers Counters Describing Logic Circuits Digital Arithmetic Operations and Circuits Digital Concepts Digital Design Digital Signal Processing Digital System Projects Using HDL Ex-OR and Ex-NOR Gates Flip-Flops Integrated-Circuit Logic Families Integrated Circuit Technologies Interfacing to the Analog World Logic Families and Their Characteristics Logic Gates Memory and Storage Microprocessor Fundamentals MSI Logic Circuits Multivibrators and 555 Timer Number Systems and Codes Programmable Logic Device Shift Registers Signals and Switches The 8051 Microcontroller

Aptitude

Time and Distance
Volume and Surface Area
Problem on Trains
Permutation and Combination

Engineering

Civil Engineering
Computer Science
Mechanical Engineering
Technical Drawing

Programming

C Programming
C# Programming
C++ Programming
Java Programming

Reasoning

Logical Reasoning
Non Verbal Reasoning
Verbal Ability
Verbal Reasoning

Links

About Us
Contact Us
Privacy Policy
Sitemap

Social

Copyright �CuriousTab. All rights reserved.