Clock Selection
| Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| CLKSEL[1:0] | |||||||
| AccessR | R | R | R | R | R | R/W | R/W |
| Reset0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Clock Select
Writing these bits selects the source for the RTC clock (CLK_RTC).
| Value | Description |
|---|---|
| 0x0 | 32KHz from OSCULP32K |
| 0x1 | 1KHz from OSCULP32K |
| 0x2 | Reserved |
| 0x3 | External clock from TOSC1 pin |