NXP Semiconductors

MF3D(H)x2

MIFARE DESFire EV2 contactless multi-application IC

MF3Dx2_MF3DHx2_SDS

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Product short data sheet

Rev. 3.2 — 12 June 2019

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Command

Description

CreateCyclicRecordFile

Creates files for multiple storages of structural similar data, for

example for logging transactions, within an existing application

on the PICC. Once the file is filled completely with data records,

the PICC automatically overwrites the oldest record with the latest

written one. This wrap is fully transparent for the PCD.

CreateTransactionMACFile Creates a Transaction MAC File and enables the Transaction MAC

feature for the targeted application.

DeleteFile

Permanently deactivates a file within the file directory of the currently

selected application.

GetFileIDs

Returns the File IDentifiers of all active files within the currently

selected application.

GetISOFileIDs

Get back the ISO File ID.

GetFileSettings

Get information on the properties of a specific file.

ChangeFileSettings

Changes the access parameters of an existing file.

8.6 Data Management Commands

Table 9. Data management commands overview

Command

Description

ReadData

Reads data from FileType.StandardData or FileType.BackupData.

WriteData

Writes data to FileType.StandardData or FileType.BackupData

GetValue

Reads the currently stored value from FileType.Value.

Credit

Increases a value stored in a FileType.Value.

Debit

Decreases a value stored in a FileType.Value.

LimitedCredit

Allows a limited increase of a value stored in a FileType.Value

without having full Credit permissions to the file.

ReadRecords

Reads out a set of complete records from a FileType.CyclicRecord

or FileType.LinearRecord.

WriteRecord

Writes data to a record in a FileType.CyclicRecord or

FileType.LinearRecord.

UpdateRecord

Updates data of an existing record in a FileType.LinearRecord or

FileType.CyclicRecord file.

ClearRecordFile

Resets a FileType.LinearRecord or FileType.CyclicRecord to empty

state.

8.7 Transaction Management Commands

Table 10. Transaction management commands overview

Command

Description

CommitTransaction

Validates all previous write access’ on FileType.BackupData,

FileType.Value, FileType.LinearRecord and FileType.CyclicRecord

within one application.

AbortTransaction

Invalidates all previous write access’ on FileType.BackupData,

FileType.Value, FileType.LinearRecord and FileType.CyclicRecord

within one application.