6.2.2 Serial Wire Debug Interface Pinout

Only the SWCLK pin is mapped to the normal PORT functions. A debugger cold-plugging or hot-plugging detection will automatically switch the SWDIO port to the SWDIO function.

Table 6-3. Serial Wire Debug Interface Pinout
SignalSupplyI/O pin
SWCLKVDDIOPA30
SWDIOVDDIOPA31