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

Gis database, GIS database:  In a nutshell, we could say that the GIS ...

GIS database:  In a nutshell, we could say that the GIS technology integrates general database operations (data query and statistical analysis), along with the unique a

Disadvantages - high level languages, Disadvantage - High  level  Langua...

Disadvantage - High  level  Languages a.Computational time is more as compared to  machine languages. b.Requires more  memory. c.Requires the knowledge of specific rules

Aims of the tariff policy - electricity policies, Aims of the Tariff Policy...

Aims of the Tariff Policy - electricity policies: The aims of the National Tariff Policy are to: 1. Ensure availability of electricity to consumers at reasonable and compet

Level4, What are the three modes of operation of rotating machines

What are the three modes of operation of rotating machines

Power semiconductor-controlled drives, Q. Explain Power semiconductor-contr...

Q. Explain Power semiconductor-controlled drives? Power electronics deals with the applications of solid-state electronics for the control and conversion of electric power. Con

Calculate the thermal velocity of an electron, Question: a) Describe t...

Question: a) Describe two mechanisms by which electrons can be excited from the valence band to the conduction band? b) Given that the direct-band gap energy for Gallium N

Strain gauge bridge circuit, Explain kinds of strain gauge bridge circuits ...

Explain kinds of strain gauge bridge circuits and resistance strain gauges.

Explain integral-error or reset control, Q. Explain Integral-error or reset...

Q. Explain Integral-error or reset control? A control system is said to possess integral-error control when the generation of the output in some way depends upon the integral o

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