AM4378BZDNA100S

AM4378BZDNA100 是普通版本的，AM4378BZDNA100S是加密版的，请看下面datasheet上的Figure 6-1. Device Nomenclature
https://www.ti.com/lit/ds/symlink/am4378.pdf

Hi Shine, 

Thank you for your reply. 

So AM4378BZDNA100S is better than AM4378BZDNA100? 

Do we need special software when using AM4378BZDNA100S? Is there any lock on AM4378BZDNA100S?

Many thanks. 

Best regards, 

John

With AM437x HS device (i.e. AM4378BZDN100S), first thing is running TI OTP key programming tool to program the user key material on target board.
After the customer key are successfully programmed, root-of-trust secure boot is enforced such that only signed SW can run.
For more detailed information on secure SDK, EVM, collaterals, it is required for user to have secure NDA in place.
www.ti.com/.../swlicexportcontrol.tsp

Thank you. 

You're welcome.