12.2.2 Signal Description
| Signal | Type | Description |
|---|---|---|
| CLKOUT | Digital output | CLK_PER output |
| XTALHF1 | Analog input | Input for one pin of a high-frequency crystal or an external clock source (EXTCLK) |
| XTALHF2 | Analog output | Output for one pin of a high-frequency crystal |
| XTAL32K1 | Analog input | Input for one pin of a 32.768 kHz crystal or an external 32.768 kHz clock source |
| XTAL32K2 | Analog output | Output for one pin of a 32.768 kHz crystal |
For more details, refer to the I/O Multiplexing section.