The oscillators are not mapped to the I/O Pin Controller (PORT) functions and their multiplexing is controlled by the Oscillators Controller (OSCCTRL) and 32 kHz Oscillators Controller (OSC32KCTRL) registers.
Oscillator | Supply | Signal | I/O pin |
---|---|---|---|
XOSC | VDDIO | XIN | PA14 |
XOUT | PA15 | ||
XOSC32K | VDDANA | XIN32 | PA00 |
XOUT32 | PA01 |
The transition time of the following pins must be greater than 50us in order to not affect the XOSC32 cycle to cycle jitter:
Package | Pin Name |
---|---|
TQFP32 / VQFN32 / VQFN24 / SSOP24 | PA02, PA31 |
WLCSP32 | PA30 |