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

Super ascii string cost, ascii code add=2unit,replace=1unit,delete=3unit.co...

ascii code add=2unit,replace=1unit,delete=3unit.convert ascii code in minimum cost

Explain the term granularity, Granularity In 'Parallel computing', Gran...

Granularity In 'Parallel computing', Granularity can be defined as a qualitative assess of the ratio of computation to communication. 1) Coarse Granularity - relatively hug

Explain the effect of cell breathing, Problem : (a) State and describe ...

Problem : (a) State and describe the transmission ranges associated with wireless transmission. Illustrate your answer with a diagram. (b) Sketch a graph representing how a

Explain the term middleware in context of rpc, Explain the term middleware ...

Explain the term middleware in context of RPC. A variety of commercial tools have been urbanized to assist the programmer in constructing client- server software. These tools a

Explain progressive control, Explain the term Progressive Control. Pro...

Explain the term Progressive Control. Progressive Control: Step by step system is an illustration of progressive control. The connection is established in stages, in respo

Specifying constraint problems, Specifying Constraint Problems: Howeve...

Specifying Constraint Problems: However as with most successful "AI" techniques there constraint solving is all about solving problems as: somehow phrase the intelligent task

Learning abilities of perceptrons, Learning Abilities of Perceptrons: ...

Learning Abilities of Perceptrons: Conversely computational learning theory is the study of what concepts particular learning schemes as representation and method detail as a

What are the various hazards encountered in pipelining, What is pipelining?...

What is pipelining? What are the various hazards encountered in pipelining? Explain in detail. The major characteristics of a pipeline are: a) Pipelining cannot be exe

What is content addressable memory, What is content addressable memory? ...

What is content addressable memory? The memory unit accessed by the content is known as an associative memory or content addressable memory. This type of memory is accessed con

Illustrate the following list of consideration of Laptop, Illustrate the fo...

Illustrate the following list of consideration of laptop computers The following is a list for consideration: - The processor must consume as little power as possible thus

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages