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What is the timing definition for I2C devices?
The I2C specification defines detailed timing specifications to enable the I C device to follow the same standard and make different devices working together. Figure 1. on page 1 shows the timing definition for tSU:DAT. Figure 1. Definition of I2C timing The Kinetis IP provides register I2Cx_F to tune the timing.
What kind of interface does the I2C bus use?
The I2C bus is a standard bidirectional interface that uses a controller, known as the master, to communicate with slave devices. A slave may not transmit data unless it has been addressed by the
Which is the timing diagram for I 2 C?
Figure 1, taken from the NXP “I 2 C-Bus specification and user manual”, depicts a timing diagram which provides definitions of the various timing specs for Fast Mode devices on the I 2 C bus. We will only use the Fast Mode timing diagram for our discussion as the majority of LTC I 2 C parts support this mode.
Why is high speed mode used in I2C?
High-speed mode Speed is one of the factors that limit the I2C bus application. Using a pull-up resistor which sets a logic 1 limits the maximum transfer speed of the bus which is why the high-speed mode at a speed of 3.4 Mbit/s is introduced.
What’s the maximum clock frequency of an I2C bus?
I2C repeaters are circuits which provide a solution to the previously described problem by isolating the capacitance between two I2C bus, hence, allowing greater capacitance on an I2C bus for a given timing budget. The maximum clock frequency (fSCL(max)) is specified to be up to 400 kHz for I2C FM and up to 1000 kHz for FM+ spec.
What do you need to know about the I2C protocol?
The inter-integrated circuit or I2C Protocol is a way of serial communication between different devices to exchange their data with each other. It is a half-duplex bi-directional two-wire bus system for transmitting and receiving data between masters (M) and slaves (S). These two wires are Serial clock line or SCL and Serial data line or SDA.
What are the roles of Masters and slaves in I2C?
Masters and Slaves play important role in I2C communication. Master is the one which initiates a communication, generates a clock and terminates the communication and Slave is the one which is handled by master and acts according to the master command. It can also be possible that multiple masters can communicate with multiple slaves.