SAM B11 Xplained Pro has a 10-pin 50-mil Cortex® Debug Connector that can be used to attach external debuggers to the ATSAMB11G18A.
| Cortex Debug Connector pin | Pin / Net | Function | Shared functionality |
|---|---|---|---|
| 1 | VCC_TARGET_P3V3 | ATSAMB11G18A voltage | |
| 2 | GPIO_1 | SWD data signal | EDBG SWD |
| 3 | GND | Ground | |
| 4 | GPIO_2 | SWD clock signal | EDBG SWD |
| 5 | GND | Ground | |
| 6 | - | - | |
| 7 | - | - | |
| 8 | - | - | |
| 9 | GND | Ground | |
| 10 | RESETN | Target reset signal |
The Target reset is isolated from the Cortex Debug Connector by R300 (0 Ohm link) which is not mounted by default in the PCBA