ST25TV02K datasheet(10/90 Pages) STMICROELECTRONICS

10 / 90 page

ST25TV02K/512 specific features

ST25TV02K/512 offer the data protection feature, both user memory and system configuration, a kill mode, and a

untraceable mode.

Those features can be programmed by setting registers of the ST25TV02K/512. ST25TV02K/512 can be partially

customized using configuration registers located in the EEPROM system area.

These registers are dedicated to:

•

Data Memory organization and protection AiSS, LOCK_BLOCK.

•

Kill mode, KILL

•

The device’s structure LOCK_CFG

•

Electronic Article Surveillance (EAS)

•

TruST25™ digital signature

•

Counter

•

Tamper Detect

•

Random Number generation

•

Untraceable mode

A set of additional registers allows to identify and customize the product (DSFID, AFI, IC_REF, etc.).

Dedicated commands Read Configuration and Write Configuration must be used to access the configuration

registers. Update is only possible when the access right has been granted by presenting the configuration

password (PWD_CFG), and if the system configuration was not previously locked (LOCK_CFG=1).

After any valid write access to the configuration registers, the new configuration is immediately applied.

5.1

Kill mode

5.1.1

Kill registers

Table 6. KILL

Command

Kill (cmd code A6h) UID @00h

Type

WO if PWD_KILL is correctly presented in the Kill command.

Bit

Name

Function

Factory value

N/A

KILL_MUTE

Status of the KILL feature

Inactive

Table 7. PWD_KILL

Command

Write pswd (cmd code B1h) with pswd_id = 0h

Type

WO: only possible if PWD_KILL is not locked.

Bit

Name

Function

Factory value

b31-b0

KILL_PSWD

Password value for kill feature or untraceable mode

00000000h

Note:

Refer to Table 5. System configuration memory map for registers accessed through dedicated commands .

ST25TV02K ST25TV512

ST25TV02K/512 specific features

DS12074 - Rev 11

page 10/90

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