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

IT PMP project managemnet., Identify at least eight milestones for this pro...

Identify at least eight milestones for this project. Write a one-page paper describing each milestone using the SMART criteria?

What are the graphics adapters, Graphics adapters: Video card converts...

Graphics adapters: Video card converts digital output from computer into an analog video signal and transmits the signal through a cable to monitor also known as a graphics ca

Illustrate left shift register with parallel load, Q. Illustrate Left shift...

Q. Illustrate Left shift register with parallel load? A register that shifts data in one direction only is known as Uni-directional shift register and a register that can shift

Receive a message, Receive a message. tid is integer task identifier of tra...

Receive a message. tid is integer task identifier of transmitting process supplied by user and msgtag is message tag supplied by user( must be non negative integer). The process re

How many select lines will a 32:1 multiplexer will have, How many select li...

How many select lines will a 32:1 multiplexer will have ? Ans. 5 select lines will be required for 32 inputs, as 2 5 = 32.

What is centralized spc, What is centralized SPC, what are its modes of ope...

What is centralized SPC, what are its modes of operation? In this centralized control, all the control equipment is replaced through a single processor that must be quite power

State the use parameters and parameter definition modules, State the Use pa...

State the Use parameters and parameter definition modules. Parameters aren't preprocessor definitions and they have scope (for example parameters are associated with specific

Determine the method for updating the main memory, The method for updating ...

The method for updating the main memory as soon as a word is removed from the Cache is known as  (A) Write-through                  (B) write-back   (C) protected write

Drag and drop state numbers and functions in vb, State 0 Source control is ...

State 0 Source control is being dragged with the variety of a target. 1 Out of the variety of a target. 2 One position in the target to one another.

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