How is 8255 programmable peripheral interface configured, Electrical Engineering

Assignment Help:

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

Ans

1026_How is 8255 Programmable Peripheral Interface configured.png

9BH => 1001 1011 =>

   b6b5=00-> Mode0

   b4=0-> Port A as input.

   b3=1-> Port C as input (PC7-PC4)

   b2=0-> Mode 0

   b1=1-> Port B as input

   b0=1-> Port C as input (PC3-PC0).


Related Discussions:- How is 8255 programmable peripheral interface configured

Terminal, Terminal The  oval symbol  show below in  indicate terminal ...

Terminal The  oval symbol  show below in  indicate terminal of the  program.  Usually  words  like START BEGIN  STOP END  are written  in terminal symbol.           START

Role of gis in distribution reforms, Role of GIS in Distribution Reforms: ...

Role of GIS in Distribution Reforms: You will agree which distribution is the weakest link in the chain of power supply and has been identified as the key focus area in power

RC coupled amplifier, what is the reason for reduction in low frequency and...

what is the reason for reduction in low frequency and high frequency regions in the frequency response of an Rc coupled amplifier?

Express the waveform of the staircase type, Q. Express the waveform of the ...

Q. Express the waveform of the staircase type shown in Figure as a sum of step functions.

Commutator, explan Two segment and four sagment commutator action

explan Two segment and four sagment commutator action

Accumulator - registers , Accumulator - Registers It is an  8 bit  re...

Accumulator - Registers It is an  8 bit  registers which  is the most  important  part of  the arithmetic  and logic unit.  It is used to store  8 bit  data.  The result  of

Draw a state diagram of 3-bit ripple counter, The block diagram for a 3-bit...

The block diagram for a 3-bit ripple counter is shown in Figure (a). Obtain a state table for the number of pulses N = 0 to 8, and draw a state diagram to explain its operation.

Total harmonic distortion, Q. Explain the term total harmonic distortion. D...

Q. Explain the term total harmonic distortion. Describes the functionary of a total harmonic distortion analyzer. Total Harmonic Distortion: Nonlinear behaviors of circuit el

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