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

Virtual memory and organization of a cache memory, Described virtual memory...

Described virtual memory Ans: Data is to be stored in physical memory locations that have addresses different from those that specified by the program. The memory control circu

Principles for developing successful system, Q. Principles for developing s...

Q. Principles for developing successful system? (1) Both developers and customers must be involved for accuracy in the information. (2) A problem solving approach must be

What does a lock object involve, What does a lock object involve? The t...

What does a lock object involve? The tables. The lock argument.

The void type is used for, The void type is used for The void type is ...

The void type is used for The void type is used to make generic pointers.

Describe about remote-load latency problem, Q. Describe about Remote-load L...

Q. Describe about Remote-load Latency Problem? When one processor requires some remote loading of data from other nodes then processor has to wait for these two remote load ope

Explain normans execution-evaluation cycle model, Question 1: (a) How ...

Question 1: (a) How would you explain human reasoning? (b) Explain the different types of human reasoning? Question 2: (a) What are the computational factors affec

What are the type of internet connection, What are the type of Internet con...

What are the type of Internet connection When determining requirements for a VPN, carefully estimate the number of systems to be put behind the VPN, the number of concurrent u

Cobol coding, What is cobol codin for heap sort?

What is cobol codin for heap sort?

When should we stop testing, When should you stop testing? It is quite ...

When should you stop testing? It is quite complex to determine as many modern software applications are so complex and run in like an interdependent environment that complete t

Explain a public key encryption system, Explain a public key encryption sys...

Explain a public key encryption system? A public key encryption system permits only the correct receiver to decode the data.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages