3 Replies Latest reply on Dec 10, 2018 5:16 PM by LinglingG_46

    PSoC setting of unused GPIO

    user_236195066

      Hi,

       

      I would like to confirm about the treatment of unused GPIO.

       

      It is described in AN 80994 as follows.

       

      AN80994

      http://www.cypress.com/documentation/application-notes/an80994-design-considerations-electrical-fast-transient-eft-immun…

       

      "Terminate the unused I/O lines to ground or supply through resistors of typical value of 10 k."

       

      We understand that it implements resistors on the unused pins of analog Hi-Z.

      Instead of implementing external resistors, Is it effective to pull up/pull donw unused pins in PSoC internal NVL setting?

       

      Regards,

      Masashi