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Pin status when S32K shutdown

Question asked by Knight Ke on Nov 29, 2019
Latest reply on Dec 4, 2019 by Jiri Kral

Hi NXP Engineer:

      In my design,MCU powers off earlier than power.Before MCU shutdown i will Pull PTC3 high,but if i shutdown the mcu,and then turn off the power the led will Flash once times。that mean it was low。

      How to check the status of IO (pull-up, pull-down, floating) under power-off?Configure the output attributes of the IO port so that the hardware connection cannot be changed(We are as PWM output).

      The pins are as follows:

      Circuit design as shown:

 

 

 

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