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[#1]

S32K3xx Data Sheet Table 10: What does "RPM" mean in the LVR_VDD_HV_A condition column?

In the S32K3xx Data Sheet, Table 10 "Supply Monitoring", the LVR_VDD_HV_A row
(assert threshold) appears twice with identical Min/Typ/Max values (2.77 / 2.85 / 2.93 V):

- LVR_VDD_HV_A, assert threshold (in FPM)
- LVR_VDD_HV_A, assert threshold (in RPM)

"FPM" is defined elsewhere in the S32K3xx Reference Manual as "Full-power mode
(Run mode)". However, I could not find any definition of "RPM" anywhere in
either the Data Sheet or the Reference Manual (5394 pages), including no
abbreviation/glossary section that lists it.

Could you please clarify:
1. What does "RPM" stand for in this context?
2. Is it correct that the LVR_VDD_HV_A threshold is identical between FPM and
RPM, as the table implies?

Thank you.

Re: S32K3xx Data Sheet Table 10: What does "RPM" mean in the LVR_VDD_HV_A condition column

Hi,

"RPM" in Table 10 stands for Reduced Power Mode. It refers to a second, physically redundant LVR monitor circuit that remains active when the device is in Standby (low-power) mode. In contrast, the FPM (Full Power Mode / Run mode) monitor operates during normal Run mode operation. Both monitors exist as part of the device's safety architecture to ensure the VDD_HV_A supply is continuously supervised regardless of the current power state.

Regarding your second question, the identical Min/Typ/Max threshold values (2.77 / 2.85 / 2.93 V) for both the FPM and RPM entries are correct. The minimum supply requirement for VDD_HV_A does not change between Run and Standby modes, so both monitors share the same trip threshold. 

BR, Petr