UM0853 datasheet(28/56 Pages) STMICROELECTRONICS

28 / 56 page

How to control the RF and I²C channels from your screen

UM0853

28/56

Doc ID 16609 Rev 3

Figure 50.

Warning before locking the AFI field

3.2.12

Lock DSFID command

The Lock DSFID button launches a Lock DSFID command. When executed, this command

locks the DSFID field permanently.

Figure 51.

Lock DSFID command

Caution:

Once the DSFID field has been locked, it cannot be unlocked.

This is the reason why a warning (shown in Figure 52) is displayed before locking the DSFID

field. To abort the Lock DSFID command, click on Cancel. To confirm the command, click

on OK.

Figure 52.

Warning before locking the DSFID field

3.2.13

RF password management

The user interface displays a warning concerning password changes: you should be very

careful when you change a password because there is no way of retrieving forgotten RF

passwords. You have to remember the new passwords you enter. The sectors locked by a

password can only be unlocked if you can provide the correct password. Figure 53 shows

the displayed warning.

By default, the RF and I²C passwords are ‘00 00 00 00’.

UM0853 데이터시트(PDF) 28 Page - STMicroelectronics