4.3.1 Other Functions

Oscillator Pinout

The oscillators are not mapped to the normal PORT functions and their multiplexing are controlled by registers in the System Controller (SYSCTRL).

Table 4-5. Oscillator Pinout
OscillatorSupplySignalI/O pin
XOSCVDDIOXINPA14
XOUTPA15
XOSC32KVDDANAXIN32PA00
XOUT32PA01

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 4-6. Serial Wire Debug Interface Pinout
SignalSupplyI/O pin
SWCLKVDDIOPA30
SWDIOVDDIOPA31