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what is a normal I2C NAK ratio

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I am working with the TLC59108 LED Driver chip over I2C and it is responding to my communications, however I have noticed it doean't always aknowledge its slave address call.

 

percentage wise it works out to 6-7% ish  (over several 30000 call test runs)

 

what is a normal "NAK" rate?  my only worry is it has to acknowledge a whole string of bytes(10) one after the other, and if it decides to stop responding mid string it will add some housekeeping overhead to figure out what it accepted and what it didn't.

 

it can nak any of the transactions, the example was a slave address that it didn't acknowledge

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  • NAK_xample.jpg

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