13.3.1 Signal Description
| Signal | Description | Type |
|---|---|---|
| XTAL32K1 | Analog Input | 32.768 kHz Crystal Oscillator input (XTAL mode) |
| Digital Input | External Clock Generator input (EXTCLK mode) | |
| XTAL32K2 | Analog Output | 32.768 kHz Crystal Oscillator output |
Note:
- The I/O lines are automatically selected when XOSC32K is enabled
- When a pin is configured to be used as a clock or oscillator, the pull-up on that pin will be overridden and set to the disabled state. This affects XTAL32K1 and XTAL32K2.
- The signal from the external crystal oscillator may affect the jitter of neighboring pads