3.3.4.2.2 SAM/PIC32C SWD Pinout
SAM/PIC32C SWD pin names and descriptions are shown in the table below. Pin numbers are shown for MPLAB PICkit Basic direct connection and Debugger Adapter Board 10-pin and 20-pin connections.
| MPLAB PICkit Basic Pin | Adapter Board (10-Pin) Pin | Adapter Board (20-Pin) Pin | Name | Description |
|---|---|---|---|---|
| 8 | 2 | 7 | SWDIO | Serial Wire Debug Data Input/Output. |
| 5 | 4 | 9 | SWDCLK | Serial Wire Debug Clock. |
| 4 | 8 | 5 | SWO | Serial Wire Output (used with ITM - not implemented on all devices). |
| 3 | 3, 5, 9 | 4,6,8,10,12,14,16,18,20 | GND | Ground |
| 2 | 1 | 1 | VDD\VTG* | VDD: MPLAB PICkit Basic providing power
to target (optional) or target providing power to MPLAB PICkit Basic (PTG) VTG: Target voltage reference. The MPLAB PICkit Basic samples the target voltage on this pin in order to power the level converters correctly. The MPLAB PICkit Basic draws less than 1mA from this pin in this mode. |
| 1 | 10 | 15 | MCLR | Reset (optional). Used to reset the target device. Connecting this pin is recommended since it allows the MPLAB PICkit Basic to hold the target device in a reset state, which can be essential to debugging in certain scenarios. |
| * Remember to include a decoupling capacitor between this pin and GND. See AN4451: SAMA5D2 Hardware Design Considerations. | ||||