
921
SAM4CP [DATASHEET]
43051E–ATPL–08/14
SLEEP: Sleep Mode
FREERUN: Free Run Mode
Note:
FREERUN must be set to 0 when digital averaging is used (OSR differs from 0 in ADC_EMR register).
PRESCAL: Prescaler Rate Selection
ADCClock = MCK / ((PRESCAL+1) * 2).
STARTUP: Start Up Time
TRACKTIM: Tracking Time
Tracking Time = (TRACKTIM + 1) * ADCClock periods.
USEQ: Use Sequence Enable
Value
Name
Description
0
NORMAL
Normal Mode: The ADC core and reference voltage circuitry are kept ON between
conversions
1
SLEEP
Sleep Mode: The ADC core and reference voltage circuitry are OFF between conversions
Value
Name
Description
0
OFF
Normal Mode
1
ON
Free Run Mode: Never wait for any trigger
Value
Name
Description
0
SUT0
0 periods of ADCClock
1
SUT8
8 periods of ADCClock
2
SUT16
16 periods of ADCClock
3
SUT24
24 periods of ADCClock
4
SUT64
64 periods of ADCClock
5
SUT80
80 periods of ADCClock
6
SUT96
96 periods of ADCClock
7
SUT112
112 periods of ADCClock
8
SUT512
512 periods of ADCClock
9
SUT576
576 periods of ADCClock
10
SUT640
640 periods of ADCClock
11
SUT704
704 periods of ADCClock
12
SUT768
768 periods of ADCClock
13
SUT832
832 periods of ADCClock
14
SUT896
896 periods of ADCClock
15
SUT960
960 periods of ADCClock
Value
Name
Description
0
NUM_ORDER
Normal Mode: The controller converts channels in a simple numeric order depending only
on the channel index
1
REG_ORDER
User Sequence Mode: The sequence respects what is defined in ADC_SEQR1 and can
be used to convert the same channel several times