Iic communication

These modifications included three new ROM updates, a bug-fix correction to the original motherboard, a newly revised motherboard, and a slight cosmetic change to the external appearance of the machine.

Iic communication

The tutorial is aimed for a beginner who has no experience or any idea of serial communication. So intermediate user who already has some idea about serial data transfer can skip this tutorial and jump directly to SPI or I2C tutorials.

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Knowledge of data transfer is very important for any embedded system developer. There are many methods and technique for data transfer each having its own pros and cons. So different data transfer technique is used in different situations.

Some example of data transfer are Simple parallel transfer. So Iic communication you want to use any of these functionality you need to have a knowledge Iic communication SPI.

Fire Wire many more … Mode Data Transfer can be broadly divided into to types Parallel Transfer — In this mode a number of bits say 8,16 or 32 are transferred at a time.

I2C Info – I2C Bus, Interface and Protocol

Thus they require as many electrical line as the number of bits to be transferred at once. This method is fast but disadvantage is more number of lines. So they are basically used when the units involved in data transfer are physically close and almost fixed with each other for a long time.

These are close to each other and packet inside the CPU box and are disconnected from each other less frequently. Serial Transfer — In this mode only one bit is transfer at once. So to transfer 8bits, 8 cycles are required.

So these requires less number of physical lines actual number of lines depends on technology used like SPI use 3 lines while I2C uses 2 lines, there are some technology that uses just a single wire!

The advantage is that due to less number of like IC using these technologies are small with low PIN count.

In this tutorial we will just focus on synchronous serial communication that is the basis of I2C and SPI. How clock line does it depends one the standard used. The timing diagram of above steps is given below.

Iic communication

The animation will make things clear for you. Timing Diagram of Serial Data Transfer. Go to step 1, repeat until we have got all 8bits.

Merge all 8bits to get the data. Now you should have got the basic over view of serial communication. If you have any doubts please post a comment or better post a new topic in the forum.

Your feedbacks can help me a lot in improving the tutorials.Welcome to IIC. Established in , Institute of Informatics & Communication (IIC), University of Delhi, provides studies in the field of informatics, which is essentially a blend of three domains: networking, telecommunication and software.

Iic communication

I2C is a serial protocol for two-wire interface to connect low-speed devices like microcontrollers, EEPROMs, A/D and D/A converters, I/O interfaces and other similar peripherals in embedded systems. NTU Investment Interactive Club (IIC) is an exclusive academic club meant for the undergraduate population in Nanyang Technological University.

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This tutorial give you the details of synchronous serial communication, which is the basis of data transfer in communication standards like SPI and I2C.

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