Power Management中的主题 Clarifications required for SBCFS2613 Main state Faults reaction

Clarifications required for SBCFS2613 Main state Faults reaction

Sivahari — Thu, 20 Aug 2026 11:04:23 GMT

Hi NXP,

Could you please confirm whether a default fail-safe reaction (assertion of FSXB and RSTB) is configured for the following faults in the respective registers?

M_TSD_FLG
M_REG_FLG
M_VSUP_FLG

Since the faults in the above registers are configured to provide an INTB indication, clarification is required on whether they also have any default fail-safe reaction, such as assertion of FSXB and/or RSTB.

Thanks,

Sivahari G

Re: Clarifications required for SBCFS2613 Main state Faults reaction

RafaR — Thu, 20 Aug 2026 22:54:33 GMT

Hello Sivahari

Good day!

I couldn't identify exactly which PN you were referring to, but in general this applies to all versions of FS26.

RafaR_0-1787266460038.png

In summary, the flags in M_TSD_FLG, M_REG_FLG, and M_VSUP_FLG are interrupt sources by default. A fail-safe reaction such as FS0B (FSXB) and/or RSTB assertion is not automatically associated with the flag itself and depends on the corresponding fail-safe configuration, with TSD faults being an explicit example that can be configured to escalate into Deep Fail Safe.

I hope this information has helped you, please let me know if you need help with anything else.

Have a great day and best of luck.

Re: Clarifications required for SBCFS2613 Main state Faults reaction

Sivahari — Fri, 21 Aug 2026 05:24:37 GMT

Hi RafaR,

I couldn't identify exactly which PN you were referring to?

I am using MFS2613AMDA6.

A fail-safe reaction such as FS0B (FSXB) and/or RSTB assertion is not automatically associated with the flag itself and depends on the corresponding fail-safe configuration.

Yes, absolutely for all regulators UV/OV fault has failsafe configuration registers "FS_I_OVUV_SAFE_REACTION1" and " FS_I_OVUV_SAFE_REACTION2 ". But Is there any provision to configure fail-safe reaction for all regulator Over Current Faults? since we have provisions to configure INTB masking/unmasking for those faults.

Example OC Faults(VBSTOV_I, VBSTOC_I, VPREOC_I, TRK1OC_I, COREOC_I)

Thanks,

Sivahari G

Re: Clarifications required for SBCFS2613 Main state Faults reaction

RafaR — Fri, 21 Aug 2026 23:33:45 GMT

Hello Sivahari

Good day!

Unfortunately, the FS26 does not have an equivalent to FS_I_OVUV_SAFE_REACTION1/2 for currents, but, all LDOs and TRKs have a current limiter, so they should remain safe even if an overclock is detected, giving you time to check it. Depending on where it originates, a different process may begin, for example, VPRE.

RafaR_0-1787355219229.png

I hope this information has helped you, please let me know if you need help with anything else.

Have a great day and best of luck.