S32K1xx What is Sticky? (Sticky System Reset Status Register (RCM_SSRS))

[DevNoah]

What is the difference between RCM_SRS and RCM_SSRS in S32K1xx ?

What is Sticky? (Sticky System Reset Status Register (RCM_SSRS))

[danielmartynek]

Hi @DevNoah,

The SSRS register is sticky because the flags stick there, they stay set until they are cleared by the SW (W1C) or until the MCU is power cycled (POR, LVR). Whereas the SRS register is a Read-only register and it shows the source of the most recent reset only.

Regards,

Daniel

[DevNoah]

Hi @danielmartynek ，

Thanks!

What is the purpose of the Sticky register and why it is needed?

[danielmartynek]

That is application dependent.

It shows all the reset sources since the MCU was powered up unless it was cleared by the application.

Regards,

Daniel