User's Manual

ACG HF Multi ISO RFID Reader V1.0
ACG Identification Technologies GmbH 114
Command
Command Data
‘as’ Option byte (1 byte)
[UID (8 bytes)]
Key page (1 byte)
Key index (1 byte)
Counter page (2 byte)
Diversification data (8 bytes)
Answer
Answer Description
‘L’ In case of success
Option byte
The option byte defines the general behavior of the command.
Note that ISO 14443 tags are only working in selected mode.
Bit Description
7 RFU
6 If set the tag is in addressed mode. The UID is following as
first 8 bytes after the option byte. The my-d™ frame is
following.
5 If set the tag is selected. No UID is needed.
4 - 0 RFU
Key page
This byte defines the key page number of the transponder
Key index
Defines the reader key index. If the index exceeds the key index of the reader the
error ‘R’ out of range is thrown. The key index is zero based.
Counter page