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Original question:

DS90UH948-Q1: I2C Timing

DS90UH948-Q1: Can i use the high speed I/O to capture the 38KHz IR remote control pulse to send to DS90UH947 side for post processing ?

PYTsai
Genius 11795 points
Part Number: DS90UH948-Q1


Hi 

Can i use the high speed I/O to capture the 38KHz IR remote control pulse to send to DS90UH947 side for post processing  to decode the IR command ? 

Thanks!

  • 0
    TI__Guru** 103215 points

    Hello PYTsai,

    As long as the GPIO input meets the maximum frequency and minimum pulse width requirements for back-channel GPIOs, then it can work. You can find the requirements in the 948 datasheet electrical table:

    Best Regards,

    Casey