ACS AET63 BioTRUSTKey - Manual (Page 20)

7.4. MCU-based Card
7.4.1. RESET
This command powers up the card inserted in the card reader and performs a card reset. If the card is
powered up when the command is being issued, only a reset of the card is carried out. The power
supply to the card is not switched off.
Command format
Instruction
Code
Data length
80
H
00
H
Response data format
ATR
ATR Answer-To-Reset as transmitted by the card according to ISO7816-3.
NOTE: The ATR is only returned in the AET63 response if the communication protocol of the card is
compatible with the reader, i.e., if the card can be processed by the AET63. Otherwise, the AET63
returns an error status and deactivates the smart card interface.
7.4.2. POWER_OFF
This command powers off the card inserted in the card reader.
Command format
Instruction Code Data length
81
H
00
H
Response data format
No response data
7.4.3. EXCHANGE_APDU
To exchange an APDU (Application Protocol Data Unit) command/response pair between the MCU
card inserted in the AET63 and the host computer.
Command format
Instructi
on Code
Data
length
Data
LEN CLA INS P1 P2 Lc BYTE
1
...2 ... BYT
E N
Le
A0
H
LEN Length of APDU command data, N, + 6 (0 < N
≤ MAX_R)
CLA APDU instruction class byte
INS APDU instruction
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