How to deal with the ENGCLK PIN when it's not be used in MPC5775 hardware design

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How to deal with the ENGCLK PIN when it's not be used in MPC5775 hardware design

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ethan-li
Contributor III

Hi,

  Is there any considerations about how to deal with the ENGCLK PIN, when it's not used in MPC5775E hardware design?

   Can it be left floating? Or be Pull-down through a resistor? If pull-down through a resistor,  what are the requirements of the resistor?

    Appreciate your help!

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davidtosenovjan
NXP TechSupport
NXP TechSupport

Hi, as it is output only pin I would recommend you to let it floating and disable output buffer i.e. clear SIU_PCR214(OBE) in order to reduce EMI.

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