MCXN236 eFuse / OTP information?

[psmitty7373]

Which document for the MCXN236 has information about the size, use, and addressing of the OTP bits?

Thanks!

[marek-trmac]

Hi @psmitty7373 ,

you can also use MCUXpresso Secure Provisioning tool (https://nxp.com/mcuxpresso/secure) to edit the fuses in GUI tool (see OTP configuration window).

For full fuses description, you need to install restricted data package, that can be downloaded on the same page.

[psmitty7373]

Good to know, thank you Marek.

[psmitty7373]

Thanks, Celeste.

[Celeste_Liu · Accepted solution]

Hello @psmitty7373 ,

Thanks for your post.

According to the section "12.5 eFuse definitions " of MCXN236 reference manual, I believe it can be found in the MCX N23x Security Reference Manual. 

Screenshot 2025-03-06 171317.png

The Security Reference Manual is confidential. You need to sign a NDA with our company and apply for the secure document on your own. The marketing department will decide whether to open it for your account.

Screenshot 2025-03-06 171554.png

Hope it can help you.

BRs,

Celeste

 

[Slopegame]

Thanks, Celeste! Very helpful info on accessing the MCXN236 security manual. Navigating NDAs can feel like playing Slope Game - constantly overcoming obstacles! Knowing it's through marketing is key. Perhaps a summary for non-NDA folks could be beneficial? Appreciate the direction!