SL2ICS5301EWSLASHV7 datasheet(12/33 Pages) NXP

12 / 33 page

113730

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

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

IC Mfg

code

UID

Password

Identifier

Password CRC16

EOF

8 bits

64 bits

8 bits

32 bits

16 bits

8 bits

Table 13.

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

16 bits

Table 15.

Response format when Error_flag is NOT set

SOF

Flags

CRC16

EOF

8 bits

16 bits

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