Struct lpc845_pac::wkt::ctrl::CLKSEL_W [−][src]
pub struct CLKSEL_W<'a> { /* fields omitted */ }
Expand description
Field CLKSEL
writer - Select the self wake-up timer clock source. Remark: This bit only has an effect if the SEL_EXTCLK bit is not set.
Implementations
Divided FRO clock. This clock runs at 750 kHz and provides time-out periods of up to approximately 95 minutes in 1.33 us increments. Remark: This clock is not available in not available in Deep-sleep, power-down, deep power-down modes. Do not select this option if the timer is to be used to wake up from one of these modes.
This is the (nominally) 10 kHz clock and provides time-out periods of up to approximately 119 hours in 100 us increments. The accuracy of this clock is limited to +/- 40 % over temperature and processing. Remark: This clock is available in all power modes. Prior to use, the low-power oscillator must be enabled. The oscillator must also be set to remain active in Deep power-down if needed.