MF0AES2001DUD datasheet(21/72 Pages) NXP

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NXP Semiconductors

MF0AES(H)20

MIFARE Ultralight AES contactless limited-use IC

Bit number

LOCK_

AES_KEY1

LOCK_

AES_KEY0

BLOCK_

LOCK_KEY

Table 14. Lock keys LOCK_Keys configuration byte

Field

Bit(s) Default

value

Description

RID_ACT

Enables or disables the RandomID functionality.

0b ... RandomID disabled (default)

1b ... RandomID enabled

To activate RID new power-on cycle is needed.

AUTH0

3Ch

AUTH0 defines the page address from which the AES authentication is required.

Valid address range for byte AUTH0 is from 00h to 3Bh. If AUTH0 is set to a page

address outside of the valid address range, the AES authentication protection is

effectively disabled.

PROT

Configures the data access restrictions without authentication

0b … write access restricted, but read access allowed

1b … read and write access restricted

CNT_INC_EN

Configuration option to allow a counter increment of counter "0x02" in ACTIVE or

TRACEABLE state

0b … Counter increment allowed only in AUTHENTICATE state

1b … Counter increment allowed on top of AUTHENTICATE also in ACTIVE or

TRACEABLE state

CNT_RD_EN

Configuration option to read of counter "0x02" in ACTIVE or TRACEABLE state

0b ... Counter read allowed only in AUTHENTICATE state

1b ... Counter read allowed on top of AUTHENTICATE also in ACTIVE or TRA

CEABLE state

VCTID

00000101b

Supports the virtual card architecture by replying to a Virtual Card Select Last

(VCSL) command with defined Virtual Card Type IDentifier (VCTID) answer.

00000101b ... 05h (default)

AUTH_LIM

000h

Limitation of failed AES authentications

000h ... limit of failed AES authentication attempts disabled (default)

001h - 3FEh ... up to 1022 negative AES authentication attempts allowed

LOCK_AES_

KEY0

LOCK_AES_KEY0 permanently locks the AES_KEY0 in pages 30h-33h.

0b … AES_KEY0 is not locked

1b … AES_KEY0 is locked

Remark: Bit can only be set once. There is no command to set it back to

unlocked.

LOCK_AES_

KEY1

LOCK_AES_KEY1 permanently locks the AES_KEY1 in blocks 34h-37h.

0b ... AES_KEY1 is not locked

1b ... AES_KEY1 is locked

Remark: Bit can only be set once. There is no command to set it back to

unlocked.

BLOCK_LOCK_

KEY

BLOCK_LOCK_KEY permanently locks the LOCK_AES_KEY0 and LOCK_AES_

KEY1.

Table 15. Configuration parameter descriptions

MF0AES_H_20

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3.2 — 28 March 2023

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