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

Draw the circuit of a 7805 voltage regulator, Q. Draw the circuit of a 7805...

Q. Draw the circuit of a 7805 voltage regulator? Explain the functions of the capacitors used at its input and output sides. Functions of capacitors used at input and outp

Explain mobility, Explain Mobility . Average drift velocity of electrons...

Explain Mobility . Average drift velocity of electrons (e - ) in an applied field is proportional to the field, the absolute magnitude of the proportionality factor eq/m, termed

What do you mean by insurance, Q. What do you mean by Insurance? This i...

Q. What do you mean by Insurance? This is done by creating a common fund out of the contribution (known as premium) from several persons who are equally exposed to the same los

Calulation of hv/lv ratio to reduce the line loss, kindly send us the formu...

kindly send us the formula and C program for performance improvement of distribution system using HV/LV ratio. REGARDS ANUJ AGARWALA

Electronic devices and circuits, Determine the change in IC from 25ºC to 17...

Determine the change in IC from 25ºC to 175ºC for the transistor defined in this table for fixed-bias with RB = 240 k and = 100 due to the S(VBE) stability factor.

Reporting requirements for distribution licensees, Reporting Requirements f...

Reporting Requirements for Distribution Licensees Distribution licensees are needs to provide operational reports, commercial reports, financial reports, energy audit reports

Electro-magnetic interference, (a) Give three different ways how electro-...

(a) Give three different ways how electro-magnetic interference can be reduced in twisted pairs based transmission. (b) Noise are unwanted signals affecting transmission. Lis

What do you mean by star topology, Q. What do you mean by Star Topology? ...

Q. What do you mean by Star Topology? Star Topology: In Star topology, all user nodes are connected to central node point that interconnects all individual users' links and nod

Simulink help, I want simulink model for carrier based pwm method

I want simulink model for carrier based pwm method

Push psw instruction , PUSH PSW Instruction It is similar to above  pu...

PUSH PSW Instruction It is similar to above  push  instruction but instead of normal  register Paris it use PSW as its  operand. Program status  word comprises of  the content

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