Name the modes of 8255 programmable peripheral interface, Computer Engineering

Assignment Help:

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

Related Discussions:- Name the modes of 8255 programmable peripheral interface

Describe about frameset, Q. Describe about Frameset? Now make a master ...

Q. Describe about Frameset? Now make a master page in which you write below code. My Frame Page -- The Master Page

Convert 2222 in hexadecimal number, Convert 2222 in Hexadecimal number ? ...

Convert 2222 in Hexadecimal number ? Ans. = 8AE

Define sr flip flop - sr latch with nor gate, Define SR Flip Flop - SR latc...

Define SR Flip Flop - SR latch with NOR Gate? The SR Flip flop neither is a circuit with two cross-coupled NOR gates or two cross-coupled NAND gates. SR

What are controls and how to use them, What are controls? How to use them? ...

What are controls? How to use them? Give examples for control. Controls are objects that can be placed in a form. The dissimilar controls are available in the Tool Box. After

Difference between classical ai and statistical ai, Statistical AI, arising...

Statistical AI, arising from machine learning, tends to be more concerned with "inductive" thought: given a set of patterns, make the trend. Classical AI, on the other hand, is mor

Career after BSc CS, Sir,wish to receive guidance from you how to join in A...

Sir,wish to receive guidance from you how to join in Aeronautical Engineering after Bsc Computer Science. I am a Girl.Interested to work in AE field, it will be better to use in co

Explain the concept of thread, The Concept of Thread A thread is a sequ...

The Concept of Thread A thread is a sequential flow of control within a process. A process is able to have one or more threads. Threads have their own register-values and progr

Define time sharing, Define Time Sharing. Time Sharing: Sharing of ...

Define Time Sharing. Time Sharing: Sharing of a computing resource among various users by means of multiprogramming and multi-tasking is termed as timesharing. By permittin

Infix to reverse polish, A) Change the following formulas from reverse Poli...

A) Change the following formulas from reverse Polish to infix: a) AB +C + D x b) ABCDE + x x / B) Change the following formulas from infix to

How deep does fifo require to be stop underflow or overflow, Given the subs...

Given the subsequent FIFO and rules, how deep does the FIFO require to be to stop underflow or overflow? RULES: a. frequency(clk_A) = frequency(clk_B) / 4 b. per

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages