The table below shows the connections between the target and the debugger section. All the connections between the target and the debugger are tri-stated when the debugger is not using the interface. Hence, there are few contaminations of the signals, e.g., the pins can be configured to anything the user wants.
For further information on how to use the capabilities of the on-board debugger, see On-Board Debugger Overview.
| AVR64DD32 Pin | Debugger Pin | Function | Shared Functionality |
|---|---|---|---|
| PD5 | CDC TX | UART RX (AVR64DD32 RX line) | Edge connector |
| PD4 | CDC RX | UART TX (AVR64DD32 TX line) | Edge connector |
| PF7 | DBG0 | UPDI | Edge connector |
| PF5 | DBG1 | LED0/Debug GPIO1 | Edge connector |
| PF6 | DBG2 | SW0/Debug GPIO0 | Edge connector |
| PF6 | DBG3 | RESET | Edge connector |