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

Relational algebra expressions , Write Relational algebra expressions for t...

Write Relational algebra expressions for the given queries. (i) List the employee numbers, employee names and their manager numbers working in several branches who earn more than

Solve out linear equations, Assume that you have been asked to solve proble...

Assume that you have been asked to solve problem with exact area constraints, the area error being no more than 1% for each department. What are the linear equations you would nee

Design 4 to 1 multiplexer with strobe input using nand gates, Design a 4 : ...

Design a 4 : 1 multiplexer with strobe input using NAND gates. Ans. Design of 4 : 1 multiplexer with strobe input using NAND gates.

Digital communication systems, a pcm has the following parameters a maximum...

a pcm has the following parameters a maximum analog input frequency of 4khz maximum decoded voltage at the receiver of 2.55v minimum dr of 6db compute minimum sampling rate,minimum

What are the barcode readers, What are the Barcode readers These collec...

What are the Barcode readers These collect data from printed barcodes and allow automatic stock control in, for illustration, supermarkets.

How is a multidimensional array defined pointer, How is a multidimensional ...

How is a multidimensional array defined in terms of a pointer to a collection of contiguous arrays of lower dimensionality ? C does not have true multidimensional arrays. Howev

Cloud computing, When Workday opened in 2005, the company had no idea it wo...

When Workday opened in 2005, the company had no idea it would be regarded as the most successful IPO of 2012. The introduction of cloud computing into the HR and financial systems

Describe message passing model, Q. Describe Message Passing Model? In ...

Q. Describe Message Passing Model? In message-passing model there be a set of tasks which employ their own local memories at the time of computation. Many tasks may inhabit on

Computer systems principles, Your program should print the inverted map to ...

Your program should print the inverted map to the screen (using a format similar to the inverter project, but you will print out the url values instead of document IDs). You can pr

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