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

Latch - introductio to microprocessors , Latch A 8 bit  latch comprise...

Latch A 8 bit  latch comprises of transparent latch D flip  flop. It is commonly  used  to interface output  device with  microprocessor. A typical example of such 8 bit  latc

Nicol prism, how much and what to write it is of 30 marks

how much and what to write it is of 30 marks

Ujt as a relaxation oscillator , UJT as a  relaxation  oscillator Th...

UJT as a  relaxation  oscillator The UJT  is a highly  efficient  switch  it is  used as trigger  a device for SCR. No sinusoidal oscillators saw tooth generators phase contro

Working of a negative clamping circuit, Q. Draw and explain the working of ...

Q. Draw and explain the working of a negative clamping circuit. The clamping network shown above is a negative clamping circuit that will clamp the input signal to a negative d

Intrinsic material, Int r insic Material A perfect semicon...

Int r insic Material A perfect semiconductor crystal with no impurities or lattice defects. No carriers at 0 K, since the valence band is completely full and t

The classical free electron theory, The free electron theory of metals was ...

The free electron theory of metals was first proposed by Drude and later improved by Lorentz. The main postulates of this theory are 1.       All metal contain, adequate number

Microprocessor, Memory map of tpa in a personal computer and explain such o...

Memory map of tpa in a personal computer and explain such of the areas in brief

Determine impedance in each branch - delta connection, Determine Impedance ...

Determine Impedance in each branch - delta connection: A delta connected balanced 3-phase load is supplied from a 3-phase 400 V supply. The line current is 30 Amp and the powe

Physics, find the resultant of two forces 20N and25N acting at an angle 60...

find the resultant of two forces 20N and25N acting at an angle 60 degree each other

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