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DS90UB948-Q1: int pin connection

Qianqian
Genius 5010 points
Part Number: DS90UB948-Q1

Dear TI Experts

 I am now using DS90UB948 and have some doubts need your suggestion, Thank you very much~

 I need to connect the INT of touch IC to  DS90UB948, and I‘d like to know the difference of the INT pin and other GPIO ，now I'm connecting the touch int to the int of 948， is their any advantage ,compared to the GPIO of 948?

  • 0
    TI__Mastermind 37500 points
    Hello,
    There are differences between using a GPIO forwarded to the Serializer, or the INTB_IN pin which is forwarded to the serializer automatically.
    The Serializer INTB will latch low for Interrupt processing, so you can determine the source of the interrupt, then release the interrupt. The GPIO used as an Interrupt GPIO does not latch.

    Please see section 7.3.8 in the DS90UB948 datasheet.
    Regards,
    Joe Quintal