MF3ICDX21_41_81_SDS

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Product short data sheet

COMPANY PUBLIC

Rev. 3.2 — 9 December 2015

145632

9 of 18

NXP Semiconductors

MF3ICDx21_41_81

MIFARE DESFire EV1 contactless multi-application IC

9.

DESFire command set

A detailed description of all commands is provided in Ref. 1.

9.1 ISO/IEC 14443-3

9.2 ISO/IEC 14443-4

Table 4.

ISO/IEC 14443-3

Command

Description

REQA

REQA and ATQA are implemented fully

according to ISO/IEC 14443-3

WUPA

WUPA is implemented fully according to

ISO/IEC 14443-3

ANTICOLLISION/SELECT Cascade Level 1

ANTICOLLISION and SELECT commands are

implemented fully according to ISO/IEC 14443-3;

the response is part 1 of the UID

ANTICOLLISION/SELECT Cascade Level 2

ANTICOLLISION and SELECT commands are

implemented fully according to ISO/IEC 14443-3;

the response is part 2 of the UID

HALT

brings MIFARE DESFire EV1 to the HALT state

Table 5.

ISO/IEC 14443-4

Command

Description

RATS

identifies the MIFARE DESFire EV1 type to the PCD

PPS

allows individual selection of the communication baud rate between PCD and

MIFARE DESFire EV1; for DESFire it is possible to set different

communication baud rates for each direction i.e. DESFire allows a

non-symmetrical information interchange speed.

WTX

if the MIFARE DESFire EV1 needs more time than the defined FWT to

respond to a PCD command it requests a Waiting Time eXtension (WTX)

DESELECT

allows MIFARE DESFire EV1 to be brought to the HALT state