SMARTCARD Xplained Pro implements one Xplained Pro Standard Extension Header on page 6 marked with EXT in silkscreen. This header makes it possible to connect the board to any SMARTCARD supporting Xplained Pro MCU board. The pin-out definition for the extension header can be seen in Table 4-1, “SMARTCARD Xplained Pro Extension Header”.
| Pin on EXT | Function | Description |
|---|---|---|
| 1 | ID_DATA | Communication to the ID chip |
| 2 | GND | Ground |
| 3 | NC | |
| 4 | NC | |
| 5 | CARD_DETECT | Card Detect |
| 6 | NC | |
| 7 | GCLK | GCLK Signal |
| 8 | NC | |
| 9 | RESET | Card Reset (GPIO generated) |
| 10 | VCC_ENABLE | Card VCC Enable |
| 11 | NC | |
| 12 | NC | |
| 13 | XCK | USART Clock |
| 14 | I/O | USART Input/Output (Bidirectional) |
| 15 | NC | |
| 16 | NC | |
| 17 | NC | |
| 18 | NC | |
| 19 | GND | Ground |
| 20 | VCC_TARGET | Target supply voltage (3.3V) |