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S32K144 PTE4 configuration when work at VLPS mode?

Question asked by Hanson He Employee on Aug 13, 2017
Latest reply on Aug 14, 2017 by Lukas Zadrapa

Dear, We test S32K144 low power mode at VLPS mode, when config all GPIO as disable status, enter into VLPS command, S32K will wakeup from VLPS mode immediately. We check again, find it is due to PTE4 pin problem, this pin also could work as CAN receive function.

We test as below:

1. config PTE4 as disable status, S32K will be wakeup immediately when enter into VLPS.

2. config PTE4 as disable status, S32K will continue to sleep when PTE4 pull up to high level.

3. If we do not config PTE4 as disable status, S32K will continue to sleep. What is the feature about PTE4? Why it will make above result? Thanks.

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