Missing Module‑specific integrator measures in RTD safety manual

[yogesh95]

Hi NXP team,

We’re using the RTD Software Safety Manual for S32K1, Rev. 2.1 (24‑Feb‑2022). Section 4.3.2 “Measures against Hardware Random Faults” states that integrator measures are detailed “in the following sections for each RTD module separately.”

However, in this manual version, I can’t find module‑specific sections that list the integrator‑implemented measures or module‑level requirements.

Could you please clarify:

1. Are these module‑specific integrator measures documented elsewhere (e.g., a separate annex, per‑module safety notes, or a newer manual)?
2. If not, what is the intended source for integrator responsibilities—FMEA excerpts, release notes, or specific RTD component documentation?
3. Is there an updated revision for S32K1 RTD that includes these sections?

Thank you in advance.

[danielmartynek]

Hi @yogesh95,

RTD modules implement safety mechanisms that prevent random hardware faults from compromising module integrity. These mechanisms are defined in each module’s FMEA. You can find the corresponding safety measures in the FMEA document included in the safety package for each module.

For example: RTD_MCU_FMEA.xlsx

- [EA-RTD-00067] – The application shall detect and handle interrupt flooding
- [EA-RTD-00067]– The application is responsible to provide an appropriate response for exceptions
- [EA_RTD_00075] – The application shall deploy control‑flow monitoring to ensure integration environment integrity
- EA_RTD_00074 – The application shall monitor the RTD integration environment for loss of integrity due to core computational faults 

- EA_RTD_00127 – The integrating application shall ensure proper task scheduling
- EA_RTD_00129 – The integrating application shall ensure proper boot sequence execution
- EA_RTD_00132 – The integration application shall ensure proper usage of reset mechanisms
- EA_RTD_00135 – The integrator shall properly implement and use needed exclusive areas

Regards,

Daniel

[yogesh95]

Hi @danielmartynek,

Thank you for the clarification.

I have one more question regarding the mapping of safety mechanisms from the FMEA to the RTD Software Safety Manual:
Have all relevant module‑specific safety mechanisms from the RTD FMEA sheets already been consolidated and listed in the RTD Software Safety Manual, or is the expectation that integrators must manually review each module’s FMEA and identify the applicable safety mechanisms themselves?

Thank you again for your support.

Regards,
Yogesh

[danielmartynek]

Hi @yogesh95,

The case is currently pending feedback from the RTD team.

BR, Daniel