https://community.nxp.com/t5/S32K/FS26-power-sequence/m-p/1632900#M22067 <P>Hi Harish,</P> <P>1. The power-up sequence is configurable by OTP, meaning each regulator is assigned to a slot by OTP configuration using the dedicated OTP bits. You can find more information in the FS26 datasheet, chapter 15.6.1 “Regulator power-up sequence”.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Figure 18.JPG" style="width: 618px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/219065iE0F98D11CC89BD3C/image-size/large?v=v2&amp;px=999" role="button" title="Figure 18.JPG" alt="Figure 18.JPG" /></span></P> <P>2. The LBIST verifies the correct functionality of the safety logic monitoring and the Fail-safe oscillator monitoring mechanism.</P> <P>3.&nbsp;Depends on which LDO is used to supply VDDIO and its OTP slot configuration.</P> <P>Best regards,</P> <P>Tomas</P> Thu, 13 Apr 2023 07:16:47 GMT TomasVaverka 2023-04-13T07:16:47Z https://community.nxp.com/t5/S32K/FS26-power-sequence/m-p/1632064#M22027 <P>1. what is powerup sequence for SBC? do have any referance document for explainning?<BR />2. what are thing to be checked in LBIST test?<BR />3. in OTP configuration in which point does VDDIO supply turn on?</P> Wed, 12 Apr 2023 10:42:25 GMT https://community.nxp.com/t5/S32K/FS26-power-sequence/m-p/1632064#M22027 mogilipuri_harish 2023-04-12T10:42:25Z https://community.nxp.com/t5/S32K/FS26-power-sequence/m-p/1632900#M22067 <P>Hi Harish,</P> <P>1. The power-up sequence is configurable by OTP, meaning each regulator is assigned to a slot by OTP configuration using the dedicated OTP bits. You can find more information in the FS26 datasheet, chapter 15.6.1 “Regulator power-up sequence”.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Figure 18.JPG" style="width: 618px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/219065iE0F98D11CC89BD3C/image-size/large?v=v2&amp;px=999" role="button" title="Figure 18.JPG" alt="Figure 18.JPG" /></span></P> <P>2. The LBIST verifies the correct functionality of the safety logic monitoring and the Fail-safe oscillator monitoring mechanism.</P> <P>3.&nbsp;Depends on which LDO is used to supply VDDIO and its OTP slot configuration.</P> <P>Best regards,</P> <P>Tomas</P> Thu, 13 Apr 2023 07:16:47 GMT https://community.nxp.com/t5/S32K/FS26-power-sequence/m-p/1632900#M22067 TomasVaverka 2023-04-13T07:16:47Z