SLE66R01PC datasheet(22/55 Pages) INFINEON

22 / 55 page

my-d™ move / my-d™ move NFC

SLE 66R01P / SLE 66R01PN

Memory Organization

Data Book

22 / 55

2011-11-24

The locking and block locking for a certain block is active immediately after writing. That means that it is not

necessary to execute the REQA or WUPA command in order to activate the locking.

Note: If all three BL bits in the LOCK0 byte are set to 1

B then Block 02H is locked. It is not possible to change the

locking bits of this block any more. The same applies for block 24

H. If BL bits of the LOCK5 byte are set to

B then this block is locked. In this case the SLE 66R01P and SLE 66R01PN responds with NACK to a

corresponding Write command.

An Anti-Tearing mechanism is implemented for Lock bytes on the SLE 66R01P and SLE 66R01PN. This

mechanism prevents a stored value to be lost in case of a tearing event. This increases the level of data integrity

and it is transparent to the customer.

4.2.4

OTP Block

The Block 03

H is a One Time Programmable (OTP) Block. Bits allocated in this block can only be logically set to

B, which is an irreversible process i.e. bits can not be reset to 0B afterwards.

The Write One Block (WR1B) command should be used to program a specific OTP value. Incoming data of the

WR1B command are bit-wise OR-ed with the current content of the OTP Block and the result is written back to the

OTP Block.

An Anti-Tearing mechanism is implemented for the OTP Block on the my-d™ move and my-d™ move NFC. This

mechanism prevents the stored value to be lost in case of a tearing event. This increases the level of data integrity

and is transparent to the customer.

4.2.5

Manufacturer Block

(25

The Manufacturer Block is used to store the my-d™ move and my-d™ move NFC internal on-chip configuration

data and the manufacturing data such as Week and Year of production, Lot and Wafer Counter etc. This block is

programmed and locked at manufacturing.

Table 7

Example for OTP Block Lock and Block Lock

BL OTP

L OTP

OTP BLOCK STATE

OTP Block Unlocked

OTP Block Locked

OTP Block Unlocked and can not be locked ever more

OTP Block Locked

Table 8

Writing to OTP Block (block 03

H) from the user point of view

OTP Block

Representation bit-wise

Description

Initial value

0000 0000 0000 0000 0000 0000 0000 0000

Production setting

Write [55550003]

0101 0101 0101 0101 0000 0000 0000 0011

Bit-wise “OR” with previous content of

block 03

Write [AA55001C]

1111 1111 0101 0101 0000 0000 0001 1111

Bit-wise “OR” with previous content of

block 03

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