Clock Selection
Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
CLKSEL[1:0] | |||||||
Access | R/W | R/W | |||||
Reset | 0 | 0 |
Clock Select
Writing these bits select the source for the RTC clock (CLK_RTC).
Value | Name | Description |
---|---|---|
0x00 |
OSC32K | 32.768 kHz from OSC32K |
0x01 |
OSC1K | 1.024 kHz from OSC32K |
0x02 |
XTAL32K | 32.768 kHz from XOSC32K or external clock from XTAL32K1 pin |
0x03 |
EXTCLK | External clock from the EXTCLK pin |