Smart Reader Operation NFC Templates ID Only
September 3, 2024 at 2:25 AMID Only Template
Description
The ID Only Template is the basic Template to read a card or tag’s protocol-level IDentifier.
Pay attention that such IDs may easily be cloned or spoofed, and that NFC mobile phones as well as modern, privacy-concerned card solutions, use random protocol-level IDentifiers, that would change all the time.
Lookup List
This Template supports 16 protocol selectors:
| LKL Value | Selected protocol(s) |
|---|---|
FF |
All supported protocols |
01 |
NFC-A - ISO/IEC 14443 type A |
02 |
NFC-B - ISO/IEC 14443 type B |
03 |
NFC-A and NFC-B - ISO/IEC 14443 types A and B |
04 |
NFC-V - ISO/IEC 15693 |
07 |
NFC-A, NFC-B and NFC-V - ISO/IEC 14443 types A and B and ISO/IEC 15693 |
08 |
NFC-F |
0F |
All NFC and ISO/IEC protocols |
20 |
ThinFilm / Kovio RF Barcodes |
21 |
Innovision Topaz/Jewel - NFC T1T |
22 |
ST MicroElectronics ST Family |
23 |
ASK CTS 256B and CTS 512B |
24 |
Inside Secure PicoTag (including HID iClass), protocol B |
28 |
FeliCa |
2A |
Inside Secure PicoTag (including HID iClass), protocol V |
2C |
Innovatron Radio Protocol (legacy Calypso cards) |
Registers
This Template uses 5 configuration registers:
| Alias | Offset | Name | Description |
|---|---|---|---|
| LKL | 0 |
Lookup List | See the Lookup List table above |
| TOF | 1 |
Output Size and Format | See details below |
| LOC | 3 |
Location of Data | See details below |
| OPT | 4 |
Options | Template-specific options |
| PFX | 2 |
Prefix | Template-specific Prefix |
TOF - Output Size and Format
Offset : 1
Size : 2
| Bit | Role | Values |
|---|---|---|
| 7-6 | Invert the ID before transmitting? | 0 : Do not invert ID bytes (the ID is transmitted “as is”)1 : RFU2 : Invert ID bytes for short (4-byte) ISO/IEC 14443 type A IDs3 : Invert ID bytes for all kind of IDs |
| 5 | Padding if ID is shorted than specified length | 0 : Padd with 00 on the left1 : Padd with FF on the right |
| 4 | ID-only or all protocol bytes? | 0 : Read only the ID (UID-A, PUPI, etc)1 : Read all the protocol bytes (ATQ-A, ATQ-B, etc) |
| 3-0 | Length and Format | 0 : Decimal, 10 digits (truncation on 4-B)1 : Raw (hex), 4 bytes (32 bits)2 : Raw (hex), 8 bytes (64 bits)3 : Raw (hex), 5 bytes (40 bits)4 : Raw (hex), 10 bytes (80 bits)5 : Raw (hex), 7 bytes (56 bits)6 : Raw (hex), 11 bytes (88 bits)7 : RFU8 : Raw (hex), 16 bytes (128 bits)9 : Raw (hex), 20 bytes (160 bits)10 : Raw (hex), 24 bytes (196 bits)11 : Raw (hex), 32 bytes (256 bits)12 : Decimal, 12 digits (truncation on 5-B)13 : Decimal, 13 digits (truncation on 5-B)14 : Decimal, variable length15 : Raw (hex), variable length |
LOC - Location of Data
Offset : 3
Size : 2
Byte 0 : Shift Bytes
Leading bytes to suppress.
Byte 1 : Shift Bits
Leading bits to suppress; valid range is 0 to 7.
OPT - Options
Offset : 4
Size : 1
If this register is set, the Reader adds a token to its output to tell the receiver what kind of credential has been read.
| Bit | Role | Values |
|---|---|---|
| 7-4 | RFU | |
| 3-2 | Position of the Card Type Token | 0 : Before the Prefix1 : After the Prefix, before the Data2 : After the Data (before the Suffix)3 : RFU |
| 1-0 | Add a Card Type Token to the output stream? | 0 : Do not add a Card Type Token1 : Add Card Type Token in hex2 : Add Card Type Token as char3 : RFU |
PFX - Prefix
Offset : 2
Size : 8
A Template-specific Prefix, that is added after the Reader’s global Prefix.
Remark : Use \t for a Tab, \n for Enter, \b for Back space, \v for Vertical space.