Atmel Evaluation Kit AT91SAM9X35-EK AT91SAM9X35-EK Data Sheet
Product codes
AT91SAM9X35-EK
948
SAM9X35 [DATASHEET]
11055E–ATARM–10-Mar-2014
42.8.2 ADC Mode Register
Name:
ADC_MR
Address:
0xF804C004
Access:
Read-write
This register can only be written if the WPEN bit is cleared in
.
• LOWRES: Resolution
• SLEEP: Sleep Mode
• FWUP: Fast Wake Up
• PRESCAL: Prescaler Rate Selection
ADCClock = MCK / ( (PRESCAL+1) * 2 )
• STARTUP: Start Up Time
31
30
29
28
27
26
25
24
USEQ
–
–
–
TRACKTIM
23
22
21
20
19
18
17
16
–
–
–
–
STARTUP
15
14
13
12
11
10
9
8
PRESCAL
7
6
5
4
3
2
1
0
–
FWUP
SLEEP
LOWRES
–
–
Value
Name
Description
0
BITS_10
10-bit resolution
1
BITS_8
8-bit resolution
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 Sleep Mode: The sleep mode is defined by the SLEEP bit
1
ON
Fast Wake Up Sleep Mode: The Voltage reference is ON between conversions and ADC Core is OFF
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