S32K3xxData Sheet problem

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S32K3xxData Sheet problem

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chuanlin
Contributor III

chuanlin_0-1697093843350.png

Hello, may I ask if WNFRST and WFRST refer to Reset signals that must be greater than this time to be considered valid?

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danielmartynek
NXP TechSupport
NXP TechSupport

Hi @chuanlin,

This is explained in the footnotes:

danielmartynek_0-1697098566260.png

Pulses with width <33ns are always filtered out by the internal filter.
Pulses with width >100ns always pass the filter.
Pulses with width in this range (33ns; 100ns) can be either filtered out or they can pass.

In other words, the LOW level condition on the reset_b pin must be > 100ns to ensure the MCU gets reset.

 

Regards,

Daniel

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