Is the LPSPI in NXP S32K144 standalone?

[gannyofficial]

Hello everyone,

As per the reference manual the NXP S32K144HAMLL has 3 Low Power Serial Peripheral Interfaces operating with the clock source of SIRC. 

I would like to know whether the 3 LPSPI operate as a standalone with the clock source or not. I couldnt find the complete bus diagram showing how the clock source is connected to all the three SPI. If anyone could clarify this, will be really helpful. Thanks. 

[VaneB · Accepted solution]

Hi @gannyofficial 

The 3 LPSIs can operate with the same or different clock source (SOSC, SIRC, FIRC and SPLL) and each of these will work independently whether they share a clock source or not.
I am attaching some diagrams of the clock architecture and various clock sources for this device.

NOTE: Images obtained from S32DS ConfigTools.

B.R.

VaneB