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I2C Protocol ACK

Question asked by Ogilthorpe on Mar 12, 2014
Latest reply on Mar 14, 2014 by Yagami

We are having difficulty doing a single write and read using the i2c bus on a ADAU1761 chip.

 

If you look at page 39 of http://www.analog.com/static/imported-files/data_sheets/ADAU1761.pdf, you will see that the figure 49 and 51 don't match.

 

On figure 49, the transaction finishes with a Ack Slave and Stop.

On figure 51, the transaction doesn't finish with an Ack Slave, just a Stop.

 

Which one is right?

 

Thanks,

Bert

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