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

Central energy conservation fund, Central Energy Conservation Fund Thi...

Central Energy Conservation Fund This fund is to be set up at the Centre to develop the delivery mechanism for large-scale adoption of energy efficiency services like as perfo

Cpld design project, 1) Study the CPLD Design Project Brief to gain an unde...

1) Study the CPLD Design Project Brief to gain an understanding of the project, and the System Specification, Circuit Description, Pre-processing and Post-processing Requirements f

Explain time division switching, Explain time division switching? Tim...

Explain time division switching? Time  Division  Switching:   A  switching  element  can  be  shared  by  number  of concurrently  active  speech  circuits.  It is the princi

Find the directive gain, Q. Aconical horn has a side viewas shown in Figure...

Q. Aconical horn has a side viewas shown in Figure  The maximum value ofthe directive gain is given by GD ∼ = 5.13(D/λ) 2 , where D =√3.33λL1 and L1 = L/(1-d/D),in which d is the i

Compute the load power factor, Considering Figure, let balanced positive-se...

Considering Figure, let balanced positive-sequence, three-phase voltages with ¯V AB = 100√3 0° V (rms) be applied to terminals A, B, and C. The three-phase wye-connected balanced

Sketch a typical circuit for a 2-input 4-output decoder, Q. Sketch a typica...

Q. Sketch a typical circuit for a 2-input, 4-output decoder.

Explain instruction sets of 8085, Explain instruction sets of 8085. a) ...

Explain instruction sets of 8085. a)  Data transfer group - MOV, MVI, LXI. b)  Arithmetic group - ADD, SUB, INR. c)  Branch group - JMP, JNZ, CALL. d)  Logical group -

Calculate the power dissipated in the amplifier, For the amplifier circuit ...

For the amplifier circuit shown in Figure with R i ≅ ∞,R o ≅ 0,A = 10,R L = 100 , and v in = 1 V, calculate the power dissipated in the amplifier if the voltage at the power-s

Explain solid-state control of dc motors, Q. Explain Solid-State Control of...

Q. Explain Solid-State Control of DC Motors? Dc motors, which are easily controllable, have historically dominated the adjustable-speed drive field. The torque-speed characteri

Classify feedback control systems according to purpose, Q. Classify Feedbac...

Q. Classify Feedback control systems according to purpose of the system? • Position control systems. Here the output position, such as the shaft position on a motor, exactly fo

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