Enter an ATR (Answer To Reset) and I will parse it for you.
Parsing ATR:
| TS = 0x3B | Direct Convention |
|---|---|
| T0 = 0xFE | Y(1): b1111, K: 14 (historical bytes) |
| TA(1) = 0x18 | Fi=372, Di=12, 31 cycles/ETU (129032 bits/s at 4.00 MHz, 161290 bits/s for fMax=5 MHz) |
| TB(1) = 0x00 | VPP is not electrically connected |
| TC(1) = 0x00 | Extra guard time: 0 |
| TD(1) = 0x80 | Y(i+1) = b1000, Protocol T=0 |
| ---- | |
| TD(2) = 0x31 | Y(i+1) = b0011, Protocol T=1 |
| ---- | |
| TA(3) = 0xFE | IFSC: 254 |
| TB(3) = 0x45 | Block Waiting Integer: 4 - Character Waiting Integer: 5 |
| ---- | |
| Historical bytes | 80 31 80 66 40 90 A5 10 2E 10 83 01 90 00 |
| Category indicator byte: 0x80 | (compact TLV data object) Tag: 3, Len: 1 (card service data byte) Card service data byte: 128 - Application selection: by full DF name - EF.DIR and EF.ATR access services: by GET RECORD(s) command - Card with MF Tag: 6, Len: 6 (pre-issuing data) Data: 40 90 A5 10 2E 10 "@....." Tag: 8, Len: 3 (status indicator) LCS (life card cycle): 1 SW: 90 00 |
| TCK = 0xF2 | correct checksum |
Possibly identified card:
3B FE 18 00 00 80 31 FE 45 80 31 80 66 40 90 A5 10 2E 10 83 01 90 00 F2
Infineon CJTOP 80K INF SLJ 52GLA080AL M8.4 (JavaCard)
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.