User's Manual

HF Mifare Easy Module V1.0

ACG Identification Technologies GmbH 42

7.4.3.6.3 Login with keydata from EEPROM

Each key stored in the reader EEPROM can be used as keytype A or keytype B. To

use a key as type A the value 10h must be added to the key index. 30h must be

added to use a key as type B.

7.4.3.6.4 Usage of key A, key B

Mifare

cards support two different crypto keys for each sector. Each key is 32 bit

long and is stored in the sector trailer (last block of the sector) on a card. It is

possible to set different access rights for each key.

7.4.3.7 Multi Tag Selection / List

This command detects several tags at the same time. It replaces the fast select

command ('s') in multiple tag surroundings. The Multi Tag list command lists all tags

with its serial numbers. Use the Multi Tag Select command to select a single tag.

Each tag has to be selected separately.

Command

Command Data

'm' Serial number (n bytes)

<CR> (1 byte)

Answer

Answer Description

Data serial number

'N' Error: No Tag in the field

Example

Command Description

m<CR> 04E9E700000000  first card

34030F07

 second card

 number of detected tags

m04E9E700000000<CR> Select card with its serial number