What is I2C protocol?

I2C stands for Inter-Integrated Circuit. It is a bus interface connection protocol incorporated into devices for serial communication. It was originally designed by Philips Semiconductor in 1982. Recently, it is a widely used protocol for short-distance communication.

How is I2C protocol implemented?

Protocol

1. Start Condition. To initiate the address frame, the controller device leaves SCL high and pulls SDA low.
2. Address Frame. The address frame is always first in any new communication sequence.
3. Data Frames.
4. Stop condition.
5. 10-bit Addresses.
6. Repeated Start Conditions.
7. Clock Stretching.

Where I2C protocol is used?

The I2C protocol is a serial communication protocol that is used to connect low-speed devices. For example, EEPROMs, microcontrollers, A/D and D/A converters, and input/output interfaces. It was developed by Philips semiconductor in 1980 for inter-chip communication. Almost all major IC manufacturers now use it.

What is meant by I2C interface?

The I2C bus is a very popular and powerful bus used for communication between a master (or multiple masters) and a single or multiple slave devices. The microcontroller represents the I2C master, and controls the IO expanders, various sensors, EEPROM, ADCs/DACs, and much more.

How does the I2C communication protocol practically work?

How I2C Communication Practically Works? I2C communication is the short form for inter-integrated circuits. It is a communication protocol developed by Philips Semiconductors for the transfer of data between a central processor and multiple ICs on the same circuit board using just two common wires.

When was the I²C and SPI protocols created?

At the roots of these two popular protocols we find two major companies – Philips for I²C and Motorola for SPI – and two different histories about why, when and how the protocols were created. The I²C bus was developed in 1982; its original purpose was to provide an easy way to connect a CPU to peripherals chips in a TV set.

How is the I2C bus used in a microcontroller?

The I2C-bus and how to use it (including specifications) April 1995 5 The I2C-bus is a multi-master bus. This means that more than one device capable of controlling the bus can be connected to it. As masters are usually micro-controllers, let’s consider the case of a data transfer between two microcontrollers connected to the I2C-bus (Figure 3).

What is the name of the I2C interface wire?

The physical I2C Bus. I2C Bus (Interface wires) consists of just two wires and are named as Serial Clock Line (SCL) and Serial Data Line (SDA). The data to be transferred is sent through the SDA wire and is synchronized with the clock signal from SCL.

https://www.youtube.com/watch?v=HGX457RA4IU