MF1P2131DA4SLASH02 datasheet(12/33 Pages) NXP

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NXP Semiconductors

MF1P(H)x1y1

MIFARE Plus EV1

MF1P(H)x1y1

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

Product short data sheet

Rev. 3.2 — 6 December 2018

COMPANY PUBLIC

366932

12 / 33

8.6 Card activation and communication protocol

The ISO/IEC 14443-3 anticollision mechanism allows for simultaneous handling of

multiple PICCs in the field. The anticollision algorithm selects each PICC individually

and ensures that execution of a transaction with a selected PICC is performed correctly

without data corruption from other PICCs in the field.

There are two different versions of the PICC. The UID is programmed into a locked part

of the NV-memory reserved for the manufacturer:

• unique 7-byte serial number

• non-unique 4-byte serial number

Due to security and system requirements, these bytes are write-protected after being

programmed by the PICC manufacturer at production time.

Remark: The programmed 4-byte NUID serial number is not globally unique which has

to be considered in the contactless system design. See Ref. 14 for further information

regarding handling of UIDs.

The customer must decide which UID length to use when ordering the product, see Table

2 for ordering information.

A MF1P(H)x1y1 with 7-byte UID supports the additional UID configuration options as

defined in Ref. 3 using the MF_PersonalizeUIDUsage command after ISO/IEC 14443-3

activation. Note that the MF_PersonalizeUIDUsage command can only be sent once.

During personalization, the PICC can be configured to support Random ID. The user can

configure whether Random ID or fixed UID shall be used. According to ISO/IEC 14443-3

the first anticollision loop (see Ref. 7) returns the Random Number Tag 08h, the 3-byte

Random Number and the BCC, if Random ID is used. In case Random ID is configured,

the real UID can be retrieved using the ISOSelect and ISOExternalAuthenticate

commands or by reading out block 0 of sector 0.

8.6.1 Backwards compatibility protocol

The backwards compatibility of this product, as used in security level 1, runs on the same

protocol layer as MIFARE Classic EV1 1K and MIFARE Classic EV1 4K. The protocol

consists of the following components:

• Frame definition: according to ISO/IEC 14443-3

• Bit encoding: according to ISO/IEC 14443-2

• Error code handling: handling is proprietary as error codes are formatted in half bytes.

• Command specification: commands are proprietary. Please use the specification as in

Ref. 3 and Ref. 4 and the additional commands which are only implemented in MIFARE

Plus EV1 as described in this document and in Ref. 1.

The following security levels can run on this protocol:

• Security Level 0

• Security Level 1

8.6.2 ISO/IEC 14443-4 Protocol

The ISO/IEC 14443-4 Protocol (also known as T=CL) is used in many processor cards.

This protocol is used for the MIFARE Plus EV1 with the following security levels:

• Security Level 0: all commands

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