Question

What acknowledgment signals are there in I2C bus?

Answer 1

I2C Bus:

• The I2C transport utilizes two wires: serial information (SDA) and serial clock (SCL).
• On the off chance that the gadget bolsters general call and needs to get the information it must recognize the address and read the information as a slav.
• All I2C ace and slave gadgets are associated with just those two wires. Every gadget can be a transmitter, a beneficiary or both.
• A few gadgets are aces – they create transport clock and start correspondence on the transport, different gadgets are slaves and react to the summons on the transport.
• So as to speak with particular gadget, each slave gadget must have an address which is one of a kind on the transport.
• I2C ace gadgets (typically microcontrollers) needn't bother with an address since no other (slave) gadget sends summons to the ace.
• Master device is used to control the data transfer.
• Slave devices are waiting to send acknowledgement to the master device recipient.

Acknowledgement Signals from SLAVE Device

• At the point when an address or information byte has been transmitted onto the transport then this must be ACKNOWLEDGED by the slave(s).
• If there should arise an occurrence of an address: If the address coordinates its own then that slave and just that slave will react to the address with an ACK.
• In the event of a byte transmitted to an effectively tended to slave then that slave will react with an ACK too.
• The slave that will give an ACK pulls the SDA line low instantly after gathering of the eighth piece transmitted, or, if there should arise an occurrence of an address byte, promptly after assessment of its address.
• In reasonable applications this won't be perceptible.