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

Ac, power factor improvement

power factor improvement

Explain hall effect with hall mobility and hall angle, Explain Hall effect....

Explain Hall effect. Consider a slab of material wherein there is a current density J resulting by an applied electric field Ex in the x- direction. The electrons will drift al

Semiconductors, Charge density I n a semiconductor

Charge density I n a semiconductor

Determine the advantages of e-nrz over nrz, 1. A modi?ed NRZ code known as ...

1. A modi?ed NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit words; invert- ing bits 2,3,6 and 7; and adding one parity bit to each word. The parity bit is chosen to make

What is the clock frequency of 8086, What is the clock frequency of 8086? ...

What is the clock frequency of 8086? Internal clock Frequency 5 MHz 8MHz  External Clock Frequency 15MHZ 24MHZ

Met, AC and DC distribution onboard ships

AC and DC distribution onboard ships

Features and usage of peripheral component interconnect bus, Discuss featur...

Discuss features and usage of Peripheral Component Interconnect bus. Peripheral Component Interconnect bus has plug as well as play characteristics and the capability to func

What is meant by cross-compiler, Ans) A program runs on one machine and imp...

Ans) A program runs on one machine and implements on another is known as cross-compiler Programs which compile on One Machine and implements on another machine is known cross

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