Clock Selection

Name:
CLKSEL
Offset:
0x07
Reset:
0x00
Access:
-
Bit76543210
CLKSEL[1:0]
AccessR/WR/W
Reset00

Bits 1:0 – CLKSEL[1:0]: Clock Select

Clock Select

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

Value Name Description
0x00 INT32K Internal 32.768 kHz oscillator
0x01 INT1K Internal 1.024 kHz oscillator
0x02 TOSC32K 32.768 kHz crystal oscillator
0x03 EXTCLK External clock from EXTCLK pin