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

Antenna, radiation pattern optimization of a planar array antenna using BBO...

radiation pattern optimization of a planar array antenna using BBO

Develop a block diagram of an asynchronous decade counter, Q. Counting to m...

Q. Counting to moduli other than 2 is a frequent requirement, the most common being to count through the binary-coded decimal (BCD) 8421 sequence. All that is required is a four-st

Measures for improving joints and connection, Measures for Improving Joints...

Measures for Improving Joints and Connection 1. Spacing of poles: The spacing between poles (for overhead lines) is also an important requirement. Long spans will result in

Find the rate of information transmission, Q. Find the rate of information ...

Q. Find the rate of information transmission? If the time occupied in transmitting each binary digit is 1 µs, find the rate of information transmission if 1 baud is equal to 1

By the nodal analysis find the current delivered, By means of nodal analysi...

By means of nodal analysis, find the current delivered by the 10-V source and the voltage across the 10- resistance in the circuit shown in figure.

Human resources - kpi, Human Resources - KPI It is the responsibility ...

Human Resources - KPI It is the responsibility of management to have the lean, capable, customer friendly organization that strives for catering to diversified need of all the

Electrical machine, transformer voltage induced in armatur of ac commentato...

transformer voltage induced in armatur of ac commentator machin in case tha field flux in sinosoidal?..

Determine IS in the given circuit, Q. Given that V 0 = 10 V, determine IS ...

Q. Given that V 0 = 10 V, determine IS in the circuit drawn in Figure.

Delay time - power semiconductor devices , Delay time ( t d ) Initiall...

Delay time ( t d ) Initially a thyristor  remains  in forward  blocking  stat when  anode to cathode forward  voltage  is applied  and gate  to cathode circuit is opened. As t

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