i.MX ProcessorsのトピックiMX8M Mini - Is GP5 in the OTP eFuse map fully supported?

iMX8M Mini - Is GP5 in the OTP eFuse map fully supported?

s_k — Mon, 25 Jan 2021 17:39:33 GMT

Hello,

Is GP5 fully supported - can be used in the application reliably?

I would like to have this confirmed, as only GP1 and GP2 are described in the data sheet, GP5 is only briefly mentioned.

Thanks,

Stefan

Bio_TICFSL — Tue, 26 Jan 2021 14:01:11 GMT

Hello S_k,

You can find more information on Reference manual, and Security reference manual.

Regards

s_k — Tue, 26 Jan 2021 14:54:46 GMT

Hello Bio_TICFSL,

Based on your hint I found Revision 3 of the Reference Manual.

This version includes the GP5_LOCK bits description, indeed.

However, Figure 6-28. OTP memory footprint on page 870 and the OCOTP memory map table on page 873 do not mention GP5, unlike GP1 and GP2.

Therefore, I would like to have confirmation from you whether our application is allowed to use GP5 without any restrictions.

Thank you.

Regards,

Stefan

Bio_TICFSL — Wed, 27 Jan 2021 14:25:03 GMT

Hello,

Yes, it a general porpouse register you can use it.

Regards