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

Accounting, I need the solutions for this assignment

I need the solutions for this assignment

Compareson, compear copper and aluminum conductore in termes of price ,weig...

compear copper and aluminum conductore in termes of price ,weight,resistance for equal length .

Example of binary subtraction of negative number , Example of binary subtra...

Example of binary subtraction of Negative number Case 2. Negative number is more than the positive number ( i e, answer is negative) Example : Subtract 92 10 ( 101

Obtain the expression for the steady-state coil current, Q. Let the coil of...

Q. Let the coil of the solenoid of have a resistance R and be excited by a voltage v = Vm sin ωt. Consider a plunger displacement of g = g 0 . (a) Obtain the expression for the

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

Explain n - type semiconductor, Explain n - Type semiconductor. n - ...

Explain n - Type semiconductor. n - Type semiconductor:- (i) If small amount of pentavalent impurity is added with, to a pure semiconductor giving a large number of free

Calculate the magnetic flux in the core, Q. A toroid with a circular cross ...

Q. A toroid with a circular cross section is shown in Figure. It is made from cast steel with a relative permeability of 2500. The magnetic flux density in the core is 1.25 Tmeasur

Compute the fourier transform, Compute the Fourier Transform of the followi...

Compute the Fourier Transform of the following function: f(x) = exp( - x 2 /(2σ 2 )) cos (2πx/k) where σ and k are constants. What is the minimum sampling rate required

Dc electric motors, T h er e are three main types - The Shu...

T h er e are three main types - The Shunt Connected DC motor in which the armature coils are connected in parallel with the field coils The Serie

Electronic instrumentation and measurements, why is a delay line used in th...

why is a delay line used in the vertical selection of oscilloscope?

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages