ST25DV02K-W1 datasheet(21/74 Pages) STMICROELECTRONICS

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Table 21. LOCK_CFG access

Command

Type

Read Configuration (cmd code A0h) @04h

Write Configuration (cmd code A1h) @04h

R always

W if configuration security session is open and configuration not locked

Table 22. LOCK_CFG

Bit

Name

Function

Factory Value

LOCK_CFG

Lock configuration register:

0: Configuration registers are unlocked

1: Configuration registers are permanently locked in write.

It only concerns configuration registers accessible by Write_Config command.

Passwords, AFI, DSFID, Block lock, AFI lock & DSFID lock are not concerned

by this mechanism.

b7-b1

RFU

0000000b

Table 23. LOCK_BLOCK of AREA0/1/2 and PWM_CTRL access

Command

Type

Read Block (cmd code 20h) @Block addr

Read Multi Block (cmd code 23h) @Block addr

Get Multi Block Security Status (cmd code 2Ch) @Block addr

Lock single Block (cmd code 22h) @Block addr

R always

W only if corresponding Block is not locked

Table 24. LOCK_BLOCK of AREA0/1/2 and PWM_CTRL

Bit

Name

Function

Factory Value

N/A

LOCK_BLOCK

Lock write access of corresponding block:

0: Block not locked in Write

1: Block permanently locked in write

ST25DV02K-W1 ST25DV02K-W2

Data protection

DS12114 - Rev 6

page 21/74

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