Reference Manual Preliminary
Prox–DU & Prox–SU
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DOC118569A Public Use Page 68/134
6 bSeq 1 00-FFh Sequence number for the
command
7 abRFU 3 000000h Reserved for future used
The response to this command message is the RDR_to_PC_SlotStatus response message.
PC_to_RDR_GetSlotStatus command
This command is used to retrieve the current slot status:
• Card not present
o no card is inserted
• Card present and not active
o a card is inserted but is not powered (the PC_to_RDR_PowerOn command
was not executed).
• Card present and active
o a card is detected and powered. (the PC_to_RDR_PowerOn command was
successfully executed).
Offset Field Size Value Description
0 bMessageType 1 65h PC_to_RDR_GetSlotStatus
1 bwLength 4 00000000h
5 bSlot 1 00h Slot 0
6 bSeq 1 00-FFh Sequence number for the
command
7 abRFU 3 000000h Reserved for future used
The response to this command message is RDR_to_PC_ SlotStatus response message.
PC_to_RDR_XfrBlock command
This command will be rejected if no contact smart card is declared present and active.
This command is handled differently depending on what mode the slot is in:
• Slot in APDU/EMV Mode
The command is exchanged between the reader and the host, using APDU
commands. As the reader exchanges TPDU commands with the card, it formats the
command using the T=0 or T=1 protocol, depending on the fields of the ATR. If
necessary, the reader chains the data in T=1; it attempts recovery in the event of a
problem, etc. The host receives the result of the command in the APDU format.
• Slot in TPDU mode
The command is sent in TPDU mode. The data is sent to the card as it was
received by the reader. The reader returns the card response to the Host in TPDU
format.
When the command follows an ATR and its format is a PPS exchange, the reader starts a
sequence of PPS exchanges.
The Data format for a PPS exchange is:
PPSS PPS0 [PPS1] [PPS2] [PPS3] PCK
With PPSS = FFh
Refer to ISO 7816-3 for more information.
Offset Field Size Value Description
0 bMessageType 1 6Fh PC_to_RDR_XfrBlock
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