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

Define intermodal dispersion, Define intermodal dispersion? Dispersion...

Define intermodal dispersion? Dispersion of the transmitted optical signal causes distortion for both digital and analog transmitted signal. The dispersion causes broadening o

What is digital system components, Q. What is Digital system components? ...

Q. What is Digital system components? The reason that digital systems are so inexpensive and yet so powerful is that they consist of very  large numbers of just a few building

Application of plc - stepper motor , Application of PLC a. A PLC  is us...

Application of PLC a. A PLC  is used to start  and stop  the motors  of a segmented conveyor beli. This  allows  only belt section carrying  a copper plate to move. b.In aut

Ac-dc voltages , To do the basic laboratory experiments related to the elec...

To do the basic laboratory experiments related to the electrical engineering course, students need to have some basic understanding about the measuring tools, apparatus, components

Determine the current in the circuit and the voltage, Q. Two identical junc...

Q. Two identical junction diodes whose volt-ampere relation is given by Equation in which IS = 0.1 µA, VT = 25 mV, and η = 2, are connected as shown in Figure. Determine the curren

Determine the resultant mmf, Q. The N-coil windings of a three-phase, two-p...

Q. The N-coil windings of a three-phase, two-pole machine are supplied with currents ia,ib, and ic, which producemmfs given by F a = Ni a cos θm; F b = Ni b cos(θm - 120°); and

Determine the thevenin resistance, Q. Determine the Thevenin resistance vie...

Q. Determine the Thevenin resistance viewed from terminals A-B of the circuit of Figure by setting independent sources to be zero and applying a test voltage at terminals A-B.

Telecommunication, Design a low noise amplifier using an Infineon RF transi...

Design a low noise amplifier using an Infineon RF transistor BFP640. The amplifier is to be used to amplify the L2 GPS signal and so the centre frequency is 1227MHz and bandwidth 4

Explain the architecture of ss7, Q. explain the architecture of SS7 and com...

Q. explain the architecture of SS7 and compare with seven-layer OSI architecture. Ans: A block schematic diagram of CCITT no. 7 signalling system is displayed in figure. Sig

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