3 Replies Latest reply on Nov 6, 2019 3:47 AM by TakashiM_61

    About the monitoring voltage of Power On Reset of PSoC4

    YaKu_1055906

      Hi all,

       

       

      I'd like to confirm the monitoring voltage of Power On Reset of PSoC4(CY8C4247LTI-L475).

       

      It is described as follows in TRM(PSoC 4200L Family Architecture TRM).

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      9.3.1 Power-On-Reset (POR)

      POR circuits provide a reset pulse during the initial power ramp.

      POR circuits monitor VCCD voltage.

       

      13.1.1 Power-on Reset

      Power-on reset is provided for system reset at power-up.

      POR holds the device in reset until the supply voltage, VDDD, is according to the datasheet specification.

      The POR activates automatically at power-up.

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      Which is POR monitoring, VCCD or VDDD?

       

      Best regards.

      Yasu