Datasheet

113730 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 3.0 — 14 March 2007 12 of 33
NXP Semiconductors
SL2 ICS53/SL2 ICS54
I•CODE SLI-S/I•CODE SLI-S HC
PUBLIC
Table 10. Response format when Error_flag is set
SOF Flags Error code CRC16 EOF
8 bits 8 bits 16 bits
Table 11. Response format when Error_flag is NOT set
SOF Flags CRC16 EOF
8 bits 16 bits
Remark: If the IC receives an invalid password, it will not execute any following command
until a Power-On Reset (RF Reset) is executed.
8.1.3.3 Write password
Command Code = B4h
With the Write Password command a new password will be written into the related
memory, if the related old password has already been transmitted with a Set Password
command before and the addressed password is not locked (see
Section 8.1.3.4 “Lock
password”).
Remark: The Write Password command can only be executed in addressed or selected
mode. The new password takes effect immediately which means that the new password
has to be transmitted with the Set Password command to get access to protected
blocks/pages.
The different passwords are addressed with the Password Identifier.
Table 12. Request format
SOF Flags Write
Passwor
d
IC Mfg
code
UID Password
Identifier
Password CRC16 EOF
8 bits 8 bits 8 bits 64 bits 8 bits 32 bits 16 bits
8 bits
Table 13. Password Identifier
Password Identifier Password
01h Read
02h Write
04h Privacy
08h Destroy SLI-S
10h EAS
Table 14. Response format when Error_flag is set
SOF Flags Error code CRC16 EOF
8 bits 8 bits 16 bits
Table 15. Response format when Error_flag is NOT set
SOF Flags CRC16 EOF
8 bits 16 bits