Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
896
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
33.9.11 Comparator Control n
The configuration of comparator n is protected while comparator n is enabled (COMPCTRLn.ENABLE=1). Changes to
the other bits in COMPCTRLn can only occur when COMPCTRLn.ENABLE is zero.
the other bits in COMPCTRLn can only occur when COMPCTRLn.ENABLE is zero.
Name:
COMPCTRLn
Offset:
0x10+n*0x4 [n=0..1]
Reset:
0x00000000
Property:
Write-Protected, Write-Synchronized
z
Bits 31:27 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z
Bits 26:24 – FLEN[2:0]: Filter Length
These bits configure the filtering for comparator n. COMPCTRLn.FLEN can only be written while COMPC-
TRLn.ENABLE is zero.
These bits are not synchronized.
These bits configure the filtering for comparator n. COMPCTRLn.FLEN can only be written while COMPC-
TRLn.ENABLE is zero.
These bits are not synchronized.
Table 33-6. Filter Length
Bit
31
30
29
28
27
26
25
24
FLEN[2:0]
Access
R
R
R
R
R
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
23
22
21
20
19
18
17
16
HYST
OUT[1:0]
Access
R
R
R
R
R/W
R
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
SWAP
MUXPOS[1:0]
MUXNEG[2:0]
Access
R/W
R
R/W
R/W
R
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
INTSEL[1:0]
SPEED[1:0]
SINGLE
ENABLE
Access
R
R/W
R/W
R
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
FLEN[2:0]
Name
Description
0x0
OFF
No filtering