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 32KHz Oscillators Controller (OSC32KCTRL).
Table 7-3. Oscillator Pinout| Oscillator | Supply | Signal | I/O pin |
|---|
| XOSC | VDDIO | XIN | PA14 |
| XOUT | PA15 |
| XOSC32K | VSWOUT | XIN32 | PA00 |
| XOUT32 | PA01 |
Note: To improve the cycle-to-cycle jitter of
XOSC32, it is recommended to keep the neighboring pins of XIN32 and XOUT32 following
pins as static as possible.
Table 7-4. XOSC32K Jitter
Minimization| Package Pin Count | Static Signal Recommended |
|---|
| 48 | PB02, PB03, PA02, PA03 |
