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Coupler - Reference manual
RM 5
Version 1.1
Coupler commands overview
Command
INS
Description
SELECT_CARD
‘A4h’
Selects one contactless card following list of
possible cards in the field
SELECT_PAGE
‘A6h’
Selects a page in a multi-application chip
TRANSMIT
‘C2h’
Sends and retrieve data from chip through
contactless interface : Transparent mode
GET_RESPONSE
‘C0h’
Reads the internal buffer of the coupler to retrieve
chip answer for ISO 7816 T=0 protocol.
Command
INS
Description
READ_STATUS
‘F2h’
Reads coupler status or EEPROM memory.
SET_STATUS
‘F4h’
Sets the coupler status or write in EEPROM
memory.
DISABLE_COUPLER
‘ADh’
Disables the coupler. it will only respond after a
ENABLE_COUPLER command.
ENABLE_COUPLER
‘AEh’
Enable the coupler. It wakes up the coupler after
a DISABLE_COUPLER command.
Security module functions :
Command
INS
Description
LOAD_KEY_FILE
‘D8h’
Load new master keys for authentication
purposes.
ASK_RANDOM
‘84h’
Ask for a random number from the coupler.
SELECT_CURRENT_KEY
‘52h’
Select the key to be used for authentication
purposes.