What are the different modes in that 8255 programmable, Ask an Expert

Engineering

What are the different modes in that 8255 Programmable Peripheral Interface (PPI) can operate?

24 I/O lines in 3-8-bit port groups - A, B, C
A, B can be 8-bit input or output ports
C can serve as 2-4-bit input or output ports
3 modes of operation:

- Mode 0: A, B, C simple input or output level sensitive ports

- Mode 1: A, B input or output ports with strobe control in C

- Mode 2: A is bidirectional with control/handshake in B and C

View complete question

Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M9578447

Have any Question?Write your Review or question?

Related Questions in Computer Engineering

Question bull studentssidnameagegpabull coursesciddeptid

Question : • students(sid,name,age,gpa) • courses(cid,deptid, description) • professors(ssn,name,address,phone,deptid) • enrollment(sid,cid,section • teaches(cid,section,grade). cid makes reference to the courses table. ...

Arectangular box without a top has surface area 2500 cm2

A rectangular box without a top has surface area 2500 cm 2 . The length x of its base is 18 cm longer that its width. • (a) Use MATLAB's polynomial functions to express the volume V of the box in terms of x. • (b) Plot V ...

Need references for information for the following dealing

Need references for information for the following dealing with CSMS (Consolidated Sales and Marketing System Project) Produce a narrative which describes the added error-handling pathways that includes: an overview of th ...

A random sample ofnbsp87nbspeighth gradenbspstudents scores

A random sample of 87 eighth grade? students' scores on a national mathematics assessment test has a mean score of 279. This test result prompts a state school administrator to declare that the mean score for the? state' ...

Reduce nfa to dfaconsider the transition table for nfa

Reduce NFA to DFA Consider the transition table for NFA N: 1.Draw a transition graph for machine N. Consider using JFLAP unless you have another tool you know for the problem. (I guess by hand will do, but that is so nin ...

What is vsftpd name two other server packages that may be

What is vsftpd? Name two other server packages that may be used for the same purpose

Computer architecture amp operating systems assessment -

Computer Architecture & Operating Systems Assessment - Computer Architecture Assignment Learning Outcomes - a) Understand how to evaluate the performance of a computer system. b) Understand the five classic components of ...

Synchronize threads write a program that launches 1000

Synchronize threads. Write a program that launches 1,000 threads. Each thread adds 1 to a variable sum that initially is 0. Define an Integer wrapper object to hold sum. Create two versions of the program with and withou ...

Question group work this weekbull introduce yourself to

Question: Group work this week: • Introduce yourself to your group • Start planning out the project with your group • The group should compile the following information into a draft document 1. What specific and detailed ...

In linux what synchronization methods they use within the

In Linux what synchronization methods they use within the kernel, please dig into your findings for Linux.

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Computer Engineering Expert