22.12.7 Clock Selection

Name: CLKSEL
Offset: 0x07
Reset: 0x00
Property: -

Bit 76543210 
       CLKSEL[1:0] 
Access R/WR/W 
Reset 00 

Bits 1:0 – CLKSEL[1:0] Clock Select

Writing these bits select the source for the RTC clock (CLK_RTC).

ValueNameDescription
0x0INT32K32.768 kHz from OSCULP32K
0x1INT1K1.024 kHz from OSCULP32K
0x2-Reserved
0x3EXTCLKExternal clock from EXTCLK pin