PCSC Operation APDU Interpreter Standard instructions GET DATA
April 13, 2023 at 2:39 AMGET DATA instruction
This command returns the serial number, the ATS, or a few other protocol data, from the card currently in the slot.
Command format
| Field | Value | Remark |
|---|---|---|
| CLA | FF |
|
| INS | CA |
|
| P1 | Sub command selection | See table below |
| P2 | Sub command selection | See table below |
| Lc | absent | |
| DataIn | absent | |
| Le | 00 |
Sub command selection
| P1 | P2 | Function | Remark | Valid for slots |
|---|---|---|---|---|
00 |
00 |
Get card UID | This is the protocol-level identifier. It may be different from the actual UID. | Contactless only |
01 |
00 |
Get ATS | The ISO 14443-4 ATS (NFC-A cards only) | Contactless only |
02 |
00 |
RFU | ||
F1 |
00 |
Get PIX data | Type of card according to PC/SC part 3: return PIX.SS, PIX.NN on 3 bytes (1st byte is 03 for NFC-A, 07 for NFC-B, 0B for NFC-V and 11 for NFC-F) |
Contactless only |
F1 |
01 |
Get NFC Forum tag type | 01 to 05 if the card is recognized as a NFC Forum tag type, 00 otherwise |
Contactless only |
F2 |
01 |
Get 7816 protocol | 00 for T=0, 01 for T=1 |
Contact only |
F2 |
02 |
Get 7816 parameters | Same as CCID RDR_To_PC_Parameters. For T=0: Findex & Dindex, TCCKST0, GuardTimeT0, WaitingIntegerT0, ClockStop (5 bytes) For T=1: Findex & Dindex, TCCKST1, GuardTimeT1, WaitingIntegerT1, ClockStop, IFSC (6 bytes) |
Contact only |
F2 |
03 |
Get 7816 protocol and parameters | 00 for T=0, 01 for T=1, then 5 or 6 bytes of parameters |
Contact only |
FA |
00 |
Get ATR | Same value as returned by SCardConnect | Contactless only |
FA |
01 |
Get REPGEN | Contact-side ATR of a Calypso card using the Innovatron protocol | Contactless only |
FB |
00 |
Get antenna | Index of the active antenna (in case the device has more than one) | Contactless only |
FC |
00 |
Get bitrate indexes | Return DSI, DRI on 2 bytes | Contactless only |
FC |
01 |
Get PCD to PICC bitrate | Return the actual DS, in kbps, on 2 bytes | Contactless only |
FC |
02 |
Get PICC to PCD bitrate | Return the actual DR, in kbps, on 2 bytes | Contactless only |
FE |
00 |
Get ellasped time for PC | Get ellasped time for proximity check, on 4 bytes | Contactless only |
FF |
00 |
Get serial number | Device’s serial number | Contactless and Contact |
Response
| Field | Value | Remark |
|---|---|---|
| DataOut | The expected data | |
| SW | 9000 on success |
Other values are documented in Status Words |