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 steady-state error of linear systems, Q. Explain Steady-State Error...

Q. Explain Steady-State Error of Linear Systems? If the steady-state response of the output does not agree exactly with the steady state of the input, the system is said to hav

Band Pass active filter, How to design band pass active filer? Any software...

How to design band pass active filer? Any software avaialble

Basic working of optical coupler, Q. Basic working of optical coupler? ...

Q. Basic working of optical coupler? The optical coupler is suitable for frequencies in the low megahertz range. The photodiode type shown above can handle only small currents;

Software, Write a computer program to implement the finite difference metho...

Write a computer program to implement the finite difference method. The program can be in any computer language that is available within the school. Set up the code to find the pot

Reduction of sequential monte carlo in medium voltage, how can optimized th...

how can optimized the system through the matlab software?

Determine paper is hygroscopic and absorbent or not, Paper is hygroscopic a...

Paper is hygroscopic and absorbent. This statement is true or false. Ans: Paper is hygroscopic and absorbent. This statement is true.

What are the hardware elements in the embedded systems, What are the hardwa...

What are the hardware elements in the embedded systems? Hardware Elements in the Embedded Systems are as follows: (i) Power Source (ii) Clock Oscillator Circuit and Clock

Clipper, application and demerits

application and demerits

What are loosely coupled systems, What are loosely coupled systems? In ...

What are loosely coupled systems? In loosely coupled systems every CPU may have its own bus control logic. The bus arbitration is handled by an external circuit, common to all

#title., what is plane transmission grating/?

what is plane transmission grating/?

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