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

How we get assignments, Hello i am a freelancer how I get a assignments ?

Hello i am a freelancer how I get a assignments ?

Cache misses - computer architecture, Cache Misses Compulsory misse...

Cache Misses Compulsory misses - it is caused by initial access to a block that has never been in the cache (also called cold start misses Capacity miss - it is cause

Functional requirements of a control unit, Q. Functional Requirements of a ...

Q. Functional Requirements of a Control Unit? Let's first try to define functions that a control unit should perform in order to get things to happen. However in order to defin

What is ipc, What is IPC? What are the various schemes available? The t...

What is IPC? What are the various schemes available? The term IPC (Inter-Process Communication) explains various ways by which different process running on some operating syste

First order predicate logic - artificial intelligence, First Order Predicat...

First Order Predicate Logic : This is a more expressive logic because it is mostly builds on propositional logic by allowing us to needs as constants, variables, predicates,

Quantifiers and variables - propositional model, Quantifiers and Variables ...

Quantifiers and Variables - propositional model: There is one question is arrives that 'What do sentences containing variables mean?' In other way of words, how does a first-o

Write truth table of combinational circuit, A combinational circuit has 3 i...

A combinational circuit has 3 inputs A, B, C and output F. F is true for following input combinations A is False, B is True A is False, C is True A, B, C are

How can you pass a struct by reference in e, How can you pass a struct by r...

How can you pass a struct by reference in e? The question is phrased in a tricky way because passing by reference is the default and only possible way to pass structs in e. I

Determine no.of processes to avoid race condition, To avoid race condition,...

To avoid race condition, the maximum number of processes that may be simultaneously inside the critical section is The maximum number of processes is one to ignore race conditi

Design goals of computer system, Design goals: The correct form of a c...

Design goals: The correct form of a computer system depends on the constraints and aim for which it was optimized. Computer architectures frequently trade off cost, standard

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages