HID Global Corporation 5553 Manuale Utente

HF Multi ISO RFID Reader User Manual, Firmware V1.4

1508-USM-00-0-04

5.1.2 MIFARE Ultra-light

MIFARE Ultra-light cards have no encryption included. They only support plain text data
transmission.

MIFARE Ultra-light only supports 4 bytes per sector, but the command set uses 16 bytes per sector.
Only the 4 least significant bytes are valid when using MIFARE Ultra-light.

Ensure that the other bytes match with the tag content when using the write command; otherwise
the read back will fail.

5.1.3 MIFARE 4k

MIFARE 4k cards have an increased memory. Beginning from sector 32 (20h), sectors have 16
blocks. Due to compatibility reasons, the sector indices have changed according to the following
table. The login sector has to be used to access the corresponding sector on the card.

Sector

Block

Login sector

00h

00h – 03h

00h

01h

04h – 07h

01h

… … …

1Fh

7Ch – 7Fh

1Fh

20h

80h – 8Fh

20h

21h

90h – 9Fh

24h

22h

A0h – AFh

28h

23h

B0h – BFh

2Ch

24h

C0h – CFh

30h

25h

D0h – DFh

34h

26h

E0h – EFh

38h

27h

F0h – FFh

3Ch

5.1.4 MIFARE Prox

MIFARE Prox tags have an operating system onboard. Data organization depends on the operating
system installed on the card. These cards can include additional functionalities such as DES or a
proprietary encipher algorithm.

Before accessing the operating system, the card must be selected. Customized commands are
issued using the transfer command.

August 2010

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