Enter an ATR (Answer To Reset) and I will parse it for you.
Parsing ATR:
| TS = 0x3B | Direct Convention |
|---|---|
| T0 = 0x9F | Y(1): b1001, 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) |
| TD(1) = 0x80 | Y(i+1) = b1000, Protocol T=0 |
| ---- | |
| TD(2) = 0x1F | Y(i+1) = b0001, Protocol T=15 |
| ---- | |
| TA(3) = 0xC7 | Clock stop: no preference - Class accepted by the card: (3G) A 5V B 3V C 1.8V |
| ---- | |
| Historical bytes | 80 31 E0 73 FE A1 1B 64 50 09 61 00 82 90 00 |
| Category indicator byte: 0x80 | (compact TLV data object) Tag: 3, Len: 1 (card service data byte) Card service data byte: 224 - Application selection: by full DF name - Application selection: by partial DF name - BER-TLV data objects available in EF.DIR - EF.DIR and EF.ATR access services: by GET RECORD(s) command - Card with MF Tag: 7, Len: 3 (card capabilities) Selection methods: 254 - Record number supported - Short EF identifier supported - Implicit DF selection - DF selection by file identifier - DF selection by path - DF selection by partial DF name - DF selection by full DF name Data coding byte: 161 - EF of TLV structure supported - Behaviour of write functions: proprietary - Value 'FF' for the first byte of BER-TLV tag fields: invalid - Data unit in quartets: 1 Command chaining, length fields and logical channels: 27 - Logical channel number assignment: by the interface device and card - Maximum number of logical channels: 4 Tag: 6, Len: 4 (pre-issuing data) Data: 50 09 61 00 "P.a." Tag: 8, Len: 2 (status indicator) SW: 90 00 |
| TCK = 0x79 | correct checksum |
Possibly identified card: UNKNOWN
Click here to enter the card description
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.