How is 8255 (programmable peripheral interface) configured, Electrical Engineering

Assignment Help:

How is 8255 (Programmable Peripheral Interface) configured if its control register contains 9B h.

Ans.

1669_Programmable Peripheral Interface.png

Programmable Peripheral Interface

Command Byte B (sets or resets any bits in port C)

1196_control register.png

BH => 1001 1011 =>

6b5=00-> Mode0

4=0-> Port A as input

3=1-> Port C as input (PC7-PC4)

2=0-> Mode 0

1=1-> Port B as input

0=1-> Port C as input (PC3-PC0).


Related Discussions:- How is 8255 (programmable peripheral interface) configured

Explain the importance of planning in an organisation, Question 1: Plan...

Question 1: Planning is one of the primary functions of management. (a) Explain the importance of planning in an organisation. (b) How can managers develop an effective a

Dc electric motors, T h er e are three main types -   The Shu...

T h er e are three main types -   The Shunt Connected DC motor in which the armature coils are connected in parallel with the field coils   The Serie

Multiprocessing - many processors many users many programs , Multiprocessin...

Multiprocessing - Many Processors Many users Many Programs  Multiprocessing or also  called  distributed processing system  provides solution to problems of above  timesharing

Overview of decimal number system, Q. Can you give some Overview of Decimal...

Q. Can you give some Overview of Decimal Number System? The Decimal Number System uses base 10 and It includes the digits from 0 through 9. The weighted values for each positio

Test equipment , What is the function of the time-base generator as used in...

What is the function of the time-base generator as used in an oscilloscope

Show advantages and disadvantages of a r-c couple amplifier, Q. What are th...

Q. What are the advantages and disadvantages of a R-C coupled amplifier. Advantages · It has excellent frequency response. The gain is constant over the audio frequency ra

Logic circuits, : A farmer owns two barns; one north of a creek and the oth...

: A farmer owns two barns; one north of a creek and the other south of the creek. The farmer has a Cabbage, a Goat, and a Wolf. The Farmer needs to put each item in a barn every ni

Minimum value of rl that can be used, Verify the minimum & maximum load cur...

Verify the minimum & maximum load current for which the zener diode will keep regulation. Find the minimum value of RL that can be used. The zener diode has V Z = 12V, I ZK =

Spectrum analyzer, Problem statement: A specialized piece of laboratory te...

Problem statement: A specialized piece of laboratory test equipment, called a spectrum analyzer,will be placed on a mobile push cart. The spectrum analyzer measures the amplitude

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd