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

Determine the node voltage, Determine the node voltage: Determine the ...

Determine the node voltage: Determine the node voltage V and then current flowing through each element by using KCL. Solution Apply KCL at the node whose voltage is V.

Designing of a 2 way cross-over circuit for loudspeaker, Loudspeakers using...

Loudspeakers using single driver are unable to cover the entire frequency band from low frequency to high frequency. Sometimes multiband frequency is required for the bass enhancem

Calculate the voltage across the capacitor, In the circuit above, V1 is a d...

In the circuit above, V1 is a dc supply which outputs 12V, R1 has a value of 100 Ω and C1 is 100µF. The switch has been left in the position shown for a long time such that there i

Karnaugh map, how can be a karnaugh map of the count of sequence: 0-5-6-9-1...

how can be a karnaugh map of the count of sequence: 0-5-6-9-11-14

Determine angle between incident ray and reflected ray, Assume a ray of lig...

Assume a ray of light is incident on a smooth reflecting surface at an angle of incidence of 15 degrees to the normal. What is the angle between the incident ray and the reflected

Calculate power delivered to the network, Calculate power delivered to the ...

Calculate power delivered to the network: 1. A wave is traveling from left to right, emerging from Z g =50 with a peak amplitude of V p =5V. The 1-port network [S] has in=0.5-

Resistors, Difference between linear and non-linear resistors

Difference between linear and non-linear resistors

Compute the maximum internal torque, For the motor speci?ed in figure,  com...

For the motor speci?ed in figure,  compute the following: (a) The load component I' 2 of the stator current, the internal torque T, and the internal power P m for a slip of 0.

Phase equilibria, distinguish between brittle and ductile fracture

distinguish between brittle and ductile fracture

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