Micronas SDA 6000, User Manual

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SDA 6000
PRELIMINARY DATA SHEET
Version 2.1
System Control & Configuration
6 - 10 Micronas
The new password is defined with command 3 and stored in the according 8-bit field in
the SCUSLS register.
The SCUSLC register is defined as follows
SCUSLC Reset Value: 0000
H
The security level status register SCUSLS is a read only register which shows the
current password, the actual security level and the state of the switching state machine.
The SCUSLS is defined as follows:
Bit Function
Command Code of Command to be Executed
Command 0 : ‘AAAA
H
’
Command 1 : ‘5554
H
’
Command 2 : ‘96 & inverse password’
Command 3 : ‘000
b
’ & new level & ‘000
b
’ & new password
Command 4 : ‘8E
H
’ & inverse password (Command 4 unlocks protected
registers for one write access if current security level is in
low protected mode.)
5 4 3 2 1 0 11 10 9 8 7 6 15 14 13 12
rw
COMMAND