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 the interpretation features of vba, VBA is licensed to Microsoft a...

VBA is licensed to Microsoft and this compatible with and only Microsoft products. Code written is compiled by an intermediate language known as P-code and this is stored in hostin

Data warehouse, 1) Define a job scheduling strategy that will meet business...

1) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pict

What is text editor, What is text editor? It is used for entering and e...

What is text editor? It is used for entering and editing application programs. The user of this program interactively implements command that permit statements of a source prog

Describe about sole access protocol, Q. Describe about Sole Access Protocol...

Q. Describe about Sole Access Protocol? The atomic operations that have conflicts are handled with the help of sole access protocol. The method used for synchronization in this

What are inertial and non-inertial frame of references, Q. What are inertia...

Q. What are inertial and non-inertial frame of references? (i) Inertial (or) unaccelerated frames: Bodies in this frame follow Newton's law of intertia as well as othe

No class can derive, Make a console application. Add class 'Account' having...

Make a console application. Add class 'Account' having variables as num (integer) name (String), bal (double), ac_code (byte). Describe four different constructors to initialize th

Secret-key encryption, Secret-key encryption is also called as Private ...

Secret-key encryption is also called as Private encryption.

What is the most common biometrics, What is the most common biometrics? ...

What is the most common biometrics? The most common biometrics is the given below: Face geometry (Photo): In this the computer takes the picture of your face and matches t

Which is most general phase structured grammar, Which is most general phase...

Which is most general phase structured grammar? Context – Sensitive is most common phase structured grammar.

How many flip flops are required to construct decade countr, How many flip ...

How many flip flops are required to construct a decade counter ? Ans. 4 FlipFlop's are required because decade counter counts 10 states from 0 to 9 (that is from 0000 to 1001).

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages