32.3.3 Sleep Mode Operation
If the Run in Standby (RUNSTDBY) bit in the Control A (DAC.CTRLA) register is
written to ‘1
’ and CLK_PER is available, the DAC will continue to
operate in Standby sleep mode. If the RUNSTDBY bit is ‘0
’, the DAC will
stop the conversion in Standby sleep mode.
If the conversion is stopped in Standby sleep mode, the DAC and the output
buffer are disabled to reduce power consumption. When the device is exiting Standby
sleep mode, the DAC and the output buffer (if configured by OUTEN = ‘1
’
in DAC.CTRLA) are enabled again. Therefore, certain start-up time is required before a
new conversion is initiated.
In Power-Down sleep mode, the DAC and output buffer are disabled to reduce the power consumption.