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

Determine about the blocking suspicious behaviour, Determine about the bloc...

Determine about the blocking suspicious behaviour The response could be spontaneous and automatic, with an option to generate the alert message manually. The history recorded i

Hard and soft real time systems, Q. Hard and Soft Real Time Systems? ...

Q. Hard and Soft Real Time Systems? Hard Real Time Systems that guarantee critical tasks are completed on time. Soft Real Time Systems that are less restrictive type o

C++, explain parallel database system

explain parallel database system

C++, find the minimum total number of shelves including the loading process...

find the minimum total number of shelves including the loading process

Salient features of a parallel programmable interface-8255, Determine the s...

Determine the salient features of a parallel programmable interface, 8255. 24 I/O lines in 3 8-bit port groups - A, B, C A, B can be 8-bit input or output ports C

Name some pure object oriented languages, Some pure object oriented languag...

Some pure object oriented languages are Smalltalk, Eiffel,  Java, Sather.

Add the equation by using 2's compliment, Add 20 and (-15) using 2's comple...

Add 20 and (-15) using 2's complement ? Ans. Addition of 20 and (-15) by using 2's complement as (20) 10 = 1 0 1 0 0                                                  (16

Create a web page from which customers can order equipment, Q. Create a Web...

Q. Create a Web page from which customers can order equipment? Suppose your boss wants you to create a Web page from which customers can order computer equipment. You need to c

Why stored program control gains superiority over hard wired, In what way i...

In what way is stored program control superior to hard wired control? The SPC gains superiority over hard wired because of following points: SP C Ha

Explain assembly program execution, Q. Explain Assembly program execution? ...

Q. Explain Assembly program execution? An assembly program is written according to a strict set of rules. A word processor or editor is used for keying an assembly program in t

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