Advanced Card Systems ACM1281U-C7, Reference Manual

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ACM1281U-C7
– Reference Manual
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Version 1.02
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5.0. Host Programming (PC-Linked) API
5.1. Contactless Smart Card Protocol
5.1.1. ATR Generation
If the reader detects a PICC, an ATR will be sent to the PC/SC driver to identify the PICC.
5.1.1.1. ATR Format for ISO 14443 Part 3 PICCs
Byte Value (Hex) Designation Description
0 3Bh
Initial
Header
-
1 8Nh T0
Higher nibble 8 means: no TA1, TB1, TC1
only TD1 is following.
Lower nibble N is the number of historical
bytes (HistByte 0 to HistByte N-1)
2 80h TD1
Higher nibble 8 means: no TA2, TB2, TC2
only TD2 is following.
Lower nibble 0 means T = 0
3 01h TD2
Higher nibble 0 means no TA3, TB3, TC3,
TD3 following.
Lower nibble 1 means T = 1
4 to
3+N
80h T1
Category indicator byte, 80 means A status
indicator may be present in an optional
COMPACT-TLV data object
4Fh
Tk
Application identifier Presence Indicator
0Ch Length
RID
Registered Application Provider Identifier
(RID) # A0 00 00 03 06h
SS Byte for standard
C0h.. C1h Bytes for card name
00 00 00 00h RFU RFU # 00 00 00 00h
4+N UU TCK Exclusive-oring of all the bytes T0 to Tk
Table 4 : ISO 14443 Part 3 ATR Format