+
+@deffn Command {stm32l4x trustzone} num [@option{enable} | @option{disable}]
+Enables or disables Global TrustZone Security, using the TZEN option bit.
+If neither @option{enabled} nor @option{disable} are specified, the command will display
+the TrustZone status.
+@emph{Note:} This command works only with devices with TrustZone, eg. STM32L5.
+@emph{Note:} This command will perform an OBL_Launch after modifying the TZEN.
+@end deffn