SCR331-DI Product Technical Manual
4.5.3 TYPE A T=CL - ATR
The ATR obtained from the card, which contains PUPI length of serial numbers, and some additional
card parameters like SAK byte, type of card (T=CL supported or not) etc are sent as historic bytes of
a T = 1 protocol based simulated ATR.
0x3B
Proprietary
0xFX
X indicates the number of bytes following
0x91
Proprietary
0x00
Proprietary
0xFF
Proprietary
0x91
Proprietary
0x81
Proprietary
0x71
Proprietary
0xFE
Proprietary
0x40
Proprietary
0x00
Proprietary
TYPEA
TYPE A parameter should be 0x41 as per PCSC2.0 specification
SAK
Selective Acknowledgement information, Using this value, application
identifies whether card type is Mifare or T=CL card
PUPI Length
Length of PUPI bytes that follow
PUPI
PUPI bytes of Length PUPI Length
CARD_PARAM1 CARD_PARAM1
CARD_PARAM2 CARD_PARAM2
CARD_PARAM3 CARD_PARAM3
Historical Bytes
Historical Bytes from the card
TCk
The TCk byte in T = 1 protocol
¾
Type A contact-less card is concerned, possible PUPI_LEN are 4, 7 and 10 bytes.
¾
TYPE A parameter should be 0x41 as per PCSC2.0 specification
¾
Higher nibble of CARD_PARAM1 is 0xY1 and where Y indicates the SFGI value and the
lower nibble states that the card supports T=CL.
¾
CARD_PARAM2 contains Baud rate integer value
¾
CARD_PARAM3 contains Wait time integer, CID supported and NAD information. The higher
nibble contains the wait time integer. The bit 0 (lsb) of the lower nibble is a boolean indicating
whether the card supports NAD addressing and bit 1 of the lower nibble is a boolean
indicating whether the card supports CID.
¾
Historical Bytes
The historical bytes obtained from the ATS are included as the historical bytes of the T=1
ATR. The number of historical bytes to be included is configurable in the firmware. The
number of historical bytes to be appended to the ATR is also configurable. If the number of
historical bytes is more than the maximum length available in the ATR, then the First n bytes
or the last n bytes are appended to the ATR depending on the firmware configuration to
configure the first n bytes or the last n bytes.
4.5.4 TYPE B supplying an ATR
The ATR obtained from the card, which contains PUPI length of serial numbers, and some additional
card parameters are sent as historic bytes of a T = 1 protocol ATR.
IND.SCR331-DI.MANUAL.VER.1.8
VER1.8
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