Enter an ATR (Answer To Reset) and I will parse it for you.
Parsing ATR:
| TS = 0x3B | Direct Convention |
|---|---|
| T0 = 0xFF | Y(1): b1111, K: 15 (historical bytes) |
| TA(1) = 0x96 | Fi=512, Di=32, 16 cycles/ETU (250000 bits/s at 4.00 MHz, 312500 bits/s for fMax=5 MHz) |
| TB(1) = 0x00 | VPP is not electrically connected |
| TC(1) = 0xFF | Extra guard time: 255 (special value) |
| TD(1) = 0x81 | Y(i+1) = b1000, Protocol T=1 |
| ---- | |
| TD(2) = 0x31 | Y(i+1) = b0011, Protocol T=1 |
| ---- | |
| TA(3) = 0xFE | IFSC: 254 |
| TB(3) = 0x40 | Block Waiting Integer: 4 - Character Waiting Integer: 0 |
| ---- | |
| Historical bytes | 65 63 |
| Category indicator byte: 0x65 | (proprietary format) "c" |
| TCK = 0x-1 | WRONG CHECKSUM, expected 0xFD |
Error: ATR is truncated: 13 bytes are missing
Possibly identified card: UNKNOWN
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.