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

What is the use of hypertext links in internet access, What is the use of h...

What is the use of hypertext links in Internet access? Use of Hypertext links in Internet access: From the user’s view point, the Web comprised a vast, worldwide collecti

Mention the various IC logic families, Mention the various IC logic familie...

Mention the various IC logic families. Ans. Different IC Logic Families: Digital IC's are fabricated through employing either the Unipolar or the Bipolar Technologies and are te

How to change default drive in dos, Q. How to Change Default Drive in dos? ...

Q. How to Change Default Drive in dos? To modify a default drive type the new drive letter followed by colon (:) and then press Enter. For example, if the default drive is A a

Structural classification-flynns classification , Structural Classification...

Structural Classification Flynn's classification examine the behavioural concept and does not receive into consideration the computer's structure. Parallel computers can be cla

Define the uniform memory access model (uma), Normal 0 false ...

Normal 0 false false false EN-US X-NONE X-NONE

Microprocessor, project

project

Conducting materials, calculate the number of states per unit volume in an ...

calculate the number of states per unit volume in an energy interval of 0.01eV above the Fermi energy of Na metal. The Fermi energy of Na at 0 K=3eV.

What are the ways to create a new form, What are the ways to create a new f...

What are the ways to create a new form? You can make a new form in any of the following three ways: Using AutoForm: You can make a form based on a single table or query qui

Electric circuit analysis, mmmmmmmmmmmmm mmmmmmm s s s s s s s s s d d d ...

mmmmmmmmmmmmm mmmmmmm s s s s s s s s s d d d d d d d d d d d d d d f f ff g gg g g g g gg r r r rr r w ww w w ww w w

Implement and - or- not gates using bit wise operator, Q. Develop a menu d...

Q. Develop a menu driven program to implement AND, OR, NOT gates using and without using Bit wise operator. The menu should be as follows: I. Using Bit Wise operator I

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages