I2c protocol bus , Computer Engineering

Assignment Help:

I²C TECHNOLOGIES

The I2C protocol bus is two bi-directional wires, serial data (SDA) and serial clock (SCL), that transmit information between the devices connected to the bus. Each device has a recognized unique address (i.e. microcontrollers, LCD driver or keyboard interface) and operates as either a transmitter or receiver, depending on the function of the device.

Obviously an LCD driver is only a receiver, whereas micro-controllers can both receive and transmit data. In addition to transmitters and receivers, devices can also be considered as masters or slaves during data transfers.

The device that initiates a data transfer on the bus and generates the clock signals to permit that transfer is called the master. At that time, any device addressed will be considered a slave. I have used PORTC (RC3 and RC4) on the PIC18F452 as serial clock (SCL) and serial data (SDA) connection respectively.

I2C - this is a Serial Interface that uses only two signals to serially exchange data with another device.

SDA - All data sent from one device to another goes on this line or bus. This signal is called as Serial Data.

SCL - It is generated by the master device and controls when data is sent and read. The signal can be forced low to prevent clock occurrence. It is done by a device that has become too busy to receive more data. This signal is called as Serial Clock.


Related Discussions:- I2c protocol bus

Explain virtual memory, In a memory hierarchy system, data and programs are...

In a memory hierarchy system, data and programs are first stored in secondary or auxiliary memory. Program and its related data are brought in main memory for execution. What if th

Define password methods and biometric systems, Define the password methods ...

Define the password methods and Biometric systems for implementing client server network security. In cyberspace, buyers and sellers cannot notice each other. Also within video

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

How to set a read or write watch point for a variable, By using Rwatch, Awa...

By using Rwatch, Awatch command in GDB we can set read or write watchpoint for a variable.

Forward chaining - artificial intelligence, Forward Chaining - Artificial i...

Forward Chaining - Artificial intelligence: Imagine we have a set of axioms which we know are true statements regarding the world. If we set these to each be a starting state o

Use verilog function to define the width of a multi-bit port, Can I use a V...

Can I use a Verilog function to define the width of a multi-bit port, wire, or reg type? Width  elements  of  ports,  wire  or  reg  declarations  require  a  constant  in  bot

Dbms., what is cascade rollback

what is cascade rollback

Difference between abstract class and interface, Abstract class: Abstract c...

Abstract class: Abstract classes are the class where one or more methods are abstract but not essentially all method has to be abstract. Abstract methods are the methods, which are

Alpha-beta pruning, Alpha-beta pruning: Thus we can prune via the alph...

Alpha-beta pruning: Thus we can prune via the alpha-beta method, it makes means to perform a depth-first search requiring the minimax principle. Just compared to a breadth fir

System software, what can be the good projects for system software subject

what can be the good projects for system software subject

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd