23.12.7 Clock Selection
| Name: | CLKSEL |
| Offset: | 0x07 |
| Reset: | 0x00 |
| Property: | - |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| CLKSEL[1:0] | |||||||||
| Access | R/W | R/W | |||||||
| Reset | 0 | 0 | |||||||
Bits 1:0 – CLKSEL[1:0] Clock Select
Writing these bits select the source for the RTC clock (CLK_RTC).
| Value | Name | Description |
|---|---|---|
0x0 |
INT32K | 32.768 kHz from OSCULP32K |
0x1 |
INT1K | 1.024 kHz from OSCULP32K |
0x2 |
TOSC32K | 32.768 kHz from XOSC32K or external clock from TOSC1 |
0x3 |
EXTCLK | External clock from EXTCLK pin |