The voltage on the external board must match that of the Development Kit (DK).
| Pin number | Signal | Description |
|---|---|---|
| 1 | SELECT | Voltage supply from the external target, used as voltage detect input to the interface MCU |
| 2 | SWDIO | Serial Wire Debug (SWD) data line |
| 3 | GND | Ground |
| 4 | SWDCLK | SWD clock line |
| 5 | GND | Ground |
| 6 | SWO | Serial Wire Output (SWO) line |
| 7 | N.C. | Not used |
| 8 | N.C. | Not used |
| 9 | N.C. | Not used |
| 10 | RESET | Reset |