Datasheet

1087
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
SLEEP: Sleep Mode
After reset, the DAC is in normal mode. The voltage reference and the DAC core are off. For the first conversion, a start-up time
must be defined in the STARTUP field. Note that in this mode, start-up time is only required once, at startup.
FASTWKUP: Fast Wake-up Mode
REFRESH: Automatic Refresh Period
0: Disables the automatic refresh of the analog channels.
1: Enables the automatic refresh of the analog channels with a refresh period of 1024/MCK.
Other values are forbidden.
USER_SEL: User Channel Selection
TAG: Tag Selection Mode
MAXS: Max Speed Mode
Value Name Description
0 DISABLED Normal mode: the DAC core and reference voltage circuitry are kept ON between conversions.
1 ENABLED
Sleep mode: the DAC core and/or reference voltage circuitry are OFF between
conversions.
Value Name Description
0STAMODE
Normal sleep mode:
the sleep mode is defined by the SLEEP bit. Voltage
reference is OFF between conversions.
1 FASTWAKEUP
Fast wake-up after sleep mode:
voltage reference is kept ON between
conversions; DAC core is OFF
Value Name Description
0 CHANNEL0 Channel 0
1 CHANNEL1 Channel 1
Value Name Description
0DIS
Tag selection mode disabled. Using USER_SEL to select
the channel for the conversion.
1 EN Tag selection mode enabled
Value Name Description
0 NORMAL Normal mode
1 MAXIMUM Maximum speed mode enabled