Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
850
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
32.8.3 Average Control
Name:
AVGCTRL
Offset:
0x02
Reset:
0x00
Property:
Write-Protected
z
Bit 7 – Reserved
This bit is unused and reserved for future use. For compatibility with future devices, always write this bit to zero
when this register is written. This bit will always return zero when read.
This bit is unused and reserved for future use. For compatibility with future devices, always write this bit to zero
when this register is written. This bit will always return zero when read.
z
Bits 6:4 – ADJRES[2:0]: Adjusting Result / Division Coefficient
These bits define the division coefficient in 2
These bits define the division coefficient in 2
n
steps.
z
Bits 3:0 – SAMPLENUM[3:0]: Number of Samples to be Collected
These bits define how many samples should be added together.The result will be available in the Result register
(RESULT). Note: if the result width increases, CTRLB.RESSEL must be changed.
These bits define how many samples should be added together.The result will be available in the Result register
(RESULT). Note: if the result width increases, CTRLB.RESSEL must be changed.
Table 32-8. Number of Samples to be Collected
Bit
7
6
5
4
3
2
1
0
ADJRES[2:0]
SAMPLENUM[3:0]
Access
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
SAMPLENUM[3:0]
Name
Description
0x0
1
1 sample
0x1
2
2 samples
0x2
4
4 samples
0x3
8
8 samples
0x4
16
16 samples
0x5
32
32 samples
0x6
64
64 samples
0x7
128
128 samples
0x8
256
256 samples
0x9
512
512 samples
0xA
1024
1024 samples
0xB-0xF
Reserved