Hi Durga Choudhury,
1. Augments/complements RTD. The SPD Product Brief and SAF Product Brief mentions “complements the S32 Real Time Drivers (RTD)” to cover safety-related on-chip peripherals, and other NXP material says SPD SAF requires/targets specific compatible RTD packages rather than replacing them.
2. Yes. The S32K3 SAF DELIVERABLES list “Source code, User manuals, SAF demo application,” and the S32K3 SPD Deliverables similarly list “Source code, User manuals, SPD demo application.”
3.4. Please communicate with your chosen distributor.
5. They come with functional-safety process compliance and safety collateral, not automatic certification of your ECU/system.
SAF is described as ISO 26262 functional-safety compliant, developed as SEooC, and usable for integration up to ASIL D; SPD material similarly says ISO 26262 functional-safety compliance up to ASIL D.
Safety packages contain SAF Safety Manual, Safety Analysis FMEA, Fault Coverage Estimation. When downloading SAF/SPD, you can download something like SW32K3_SPD_1.0.6_SafetyPack.zip.
Best Regards,
Robin