Unused GPIO Pin Configuration of S912ZVL12F0MLF

labib_apag — Wed, 27 Jul 2022 20:50:53 GMT

Dear Altruist,

We are using S912ZVL12F0MLF MCU for a light module. We are having issue with the ESD test. It seems the MCU is resetting during the ESD test.

We have few unused GPIO pins the MCU. In order to achieve better ground of the MCU, we connected all unused GPIO pins with the ground.

What is the best configuration of the unused GPIO pins in order to achieve better EMC/ESD performance?

Re: Unused GPIO Pin Configuration of S912ZVL12F0MLF

lama — Thu, 28 Jul 2022 14:34:49 GMT

Dear Labib, you shoud check whether you follow AN5084 - Hardware Design Guidelines for
the S12ZVL Microcontrollers.There is also comment related to unused pins.

https://www.nxp.com/webapp/Download?colCode=AN5084

Best regards,

Ladislav

topic Unused GPIO Pin Configuration of S912ZVL12F0MLF in S12 / MagniV Microcontrollers

Unused GPIO Pin Configuration of S912ZVL12F0MLF

Re: Unused GPIO Pin Configuration of S912ZVL12F0MLF