User's Manual

HF Mifare Easy Module V1.0
ACG Identification Technologies GmbH 26
7.2.8 Examples
02h 64h 01h 78h 1Dh 03h
STX Station ID Length ‘x’ BCC ETX
This instruction frame will reset the reader module with the station ID 64h.
7.3 Register Set
The reader has several system flags to customize its behaviour. The flags are stored
non-volatile in its EEPROM. The reader accepts changes of the setting only during
the start up phase. It is recommended to clear all RFU bits to guarantee further
compatibility.
The reader is able to store up to 32 authentication keys to log in Standard Mifare
cards internally. All keys are read only and cannot be accessed via the interface
lines.
7.3.1 EEPROM memory organization
Register Description
00h … 03h Unique device ID; read only
04h Station ID
05h Protocol configuration
06h Baud rate
07h Reset Off Time
08h Reset Recovery time
09h Internal use / Do no change
0Ah ... 0Fh RFU
10h … 13h User data
Figure 7-3: EEPROM memory
7.3.2 Unique device ID (00h – 03h)
The unique device ID identifies a reader module. It is factory programmed and
cannot be changed.