S32K344 GPIO Reset Status Questions

MVR — Tue, 29 Aug 2023 18:05:42 GMT

I'm using an S32K344, 257-pin BGA package.

I would like to understand a little more about the reset status over the pins that we can see in the SK344_IOMUX.xlsx.

1) What does DCF mean?

2) And, if I would like to get the pin state on boot, before reach the "void main(void)" point, would I have to get the "Pad State After Selftest" column, correct?

3) Is there a default state for direction (input/output), Driver type (push-pull/pullup...), alternate function and drive strength?

4) What is the difference between DCF and MDM?

Thank you!

MVR

Re: S32K344 GPIO Reset Status Questions

Robin_Shen — Thu, 31 Aug 2023 09:27:12 GMT

A1: PTA2 and PTA3 are allocated to FCCU fault output and PTA5 is for RESET_b. These pins can be configured via DCF records.

For FCCU: These pins will behave based on fault protocol used. Refer to chapter 53.3.5 EOUT interface of S32K3XXRM Rev.7.

A3: See the MSCR reset value of the AC column, which contains these functions.

Best Regards,
Robin

topic Re: S32K344 GPIO Reset Status Questions in S32K

S32K344 GPIO Reset Status Questions

Re: S32K344 GPIO Reset Status Questions