Smart card ATR parsing

Enter an ATR (Answer To Reset) and I will parse it for you.

Results

Parsing ATR:

3B F7 18 00 00 80 31 FE 45 73 66 74 65 2D 6E 66 C4
TS = 0x3BDirect Convention
T0 = 0xF7Y(1): b1111, K: 7 (historical bytes)
TA(1) = 0x18Fi=372, Di=12, 31 cycles/ETU (129032 bits/s at 4.00 MHz, 161290 bits/s for fMax=5 MHz)
TB(1) = 0x00VPP is not electrically connected
TC(1) = 0x00Extra guard time: 0
TD(1) = 0x80Y(i+1) = b1000, Protocol T=0
----
TD(2) = 0x31Y(i+1) = b0011, Protocol T=1
----
TA(3) = 0xFEIFSC: 254
TB(3) = 0x45Block Waiting Integer: 4 - Character Waiting Integer: 5
----
Historical bytes73 66 74 65 2D 6E 66
Category indicator byte: 0x73 (proprietary format) "fte-nf"
TCK = 0xC4correct checksum

Possibly identified card:

3B F7 18 00 00 80 31 FE 45 73 66 74 65 2D 6E 66 C4

SmartCafe Expert 3.2 72K

Canonical URL JSON output

Again

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See also

The parsing code is part of pyscard and is available at parseATR.py.

The list of known ATR is also available online at smartcard_list.txt.

My blog contains a serie of artickes about ATR bytes.

More documentation: