The oscillators are not mapped to the normal PORT functions and their multiplexing are controlled by registers in the Oscillators Controller (OSCCTRL) and in the 32K Oscillators Controller (OSC32KCTRL).
| Oscillator | Supply | Signal | I/O pin |
|---|---|---|---|
| XOSC | VDDIO | XIN | PA14 |
| XOUT | PA15 | ||
| XOSC32K | VDDANA | XIN32 | PA00 |
| XOUT32 | PA01 |