19.4 Signal Description
| Signal | Description | Type |
|---|---|---|
| XIN32 | Analog Input | 32.768 kHz Crystal Oscillator or external clock input |
| XOUT32 | Analog Output | 32.768 kHz Crystal Oscillator output |
The I/O lines are automatically selected when XOSC32K is enabled and do not need to be configured by the user. The external 32.768 kHz crystal must be connected between the XIN32 and XOUT32 pins, along with any required load capacitors.