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 does tcp achieve reliability, How does TCP achieve reliability? One...

How does TCP achieve reliability? One of the most significant technologies is retransmission. While TCP stands data the sender compensates for packet loss through implementing

Define a B- tree of order m, Define a B tree of order m. B Tree of orde...

Define a B tree of order m. B Tree of order m A balanced multiway search tree of order m in which every non root node having at least m/2 keys is known as a B-Tree of order

Block diagram of an associative memory, Q. Block diagram of an associative ...

Q. Block diagram of an associative memory? The block diagram of an associative memory is displayed in Figure below. It comprises of a memory array and logic for m words with n

Illustrate the working of encoders, Q. Illustrate the working of Encoders? ...

Q. Illustrate the working of Encoders? An Encoder performs reverse function of decoder. An encoder has 2n input lines and 'n' output line. Let's see 8 ×3 encoder that encodes 8

Modus ponens rule, Modus ponens rule: In fact the general format for t...

Modus ponens rule: In fact the general format for the modus ponens rule is as follows: like if we have a true sentence that states the proposition A implies proposition B and

What is the system call available to change the personality, What is the sy...

What is the system call available to change the personality? The system call personality prefers to a method to modify its implementation domain in order that Linux can emulate

Perform division in binary showing contents of accumulator, Q. Perform divi...

Q. Perform division in binary showing contents of accumulator, B register and Y register during each step. (Accumulator, B, Y are 5-bit registers) 13 / 2

Minimum possibility -minimax algorithm, Minimum possibility -minimax algori...

Minimum possibility -minimax algorithm: Finally, we want to put the scores on the top edges in the tree. So there is over again a choice. Whenever, in this case, we have to r

Ruby, Discuss about variables and assignmesnt statements

Discuss about variables and assignmesnt statements

Define hex directive, Q. Define HEX directive? HEX: HEX directive enabl...

Q. Define HEX directive? HEX: HEX directive enables the coding of hexadecimal values in body of the program. That statement directs assembler to treat tokens in source file wh

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages