ST25DV04K datasheet(47/197 Pages) STMICROELECTRONICS

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Table 46. RFA2SS

Bit

Name

Function

Factory Value

b1-b0

PWD_CTRL_A2

00: Area 2 RF user security session can’t be open by password

01: Area 2 RF user security session is open by RF_PWD_1

10: Area 2 RF user security session is open by RF_PWD_2

11: Area 2 RF user security session is open by RF_PWD_3

00b

b3-b2

RW_PROTECTION_A2

00: Area 2 RF access: Read always allowed, Write always allowed

01: Area 2 RF access: Read always allowed, Write allowed if RF user security

session is open

10: Area 2 RF access: Read allowed if RF user security session is open, Write

allowed if RF user security session is open

11: Area 2 RF access: Read allowed if RF user security session is open, Write

always forbidden

00b

Note:

Refer to Table 11. System configuration memory map for the RFA2SS register.

Table 47. RFA3SS access

I2C

Command

Type

Address

Type

Read Configuration (cmd code A0h) @08h

Write Configuration (cmd code A1h) @08h

R always, W if RF configuration security

session is open and configuration not

locked

E2 = 1, 0008h

R always, W if I2C security

session is open

Table 48. RFA3SS

Bit

Name

Function

Factory Value

b1-b0

PWD_CTRL_A3

00: Area 3 RF user security session can’t be open by password

01: Area 3 RF user security session is open by RF_PWD_1

10: Area 3 RF user security session is open by RF_PWD_2

11: Area 3 RF user security session is open by RF_PWD_3

00b

b3-b2

RW_PROTECTION_A3

00: Area 3 RF access: Read always allowed / Write always allowed

01: Area 3 RF access: Read always allowed, Write allowed if RF user security

session is open

10: Area 3 RF access: Read allowed if RF user security session is open, Write

allowed if RF user security session is open

11: Area 3 RF access: Read allowed if RF user security session is open, Write

always forbidden

00b

b7-b4

RFU

0000b

Note:

Refer to Table 11. System configuration memory map for the RFA3SS register.

Table 49. RFA4SS access

I2C

Command

Type

Address

Type

Read Configuration (cmd code A0h) @0Ah

Write Configuration (cmd code A1h) @0Ah

R always, W if RF configuration security

session is open and configuration not

locked

E2 = 1, 000Ah

R always, W if I2C security

session is open

ST25DV04K ST25DV16K ST25DV64K

Data Protection

DS10925 - Rev 11

page 47/197

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