Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
380
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
22.8.3 Data Direction Set
This register allows the user to set one or more I/O pins as an output, without doing a read-modify-write operation.
Changes in this register will also be reflected in the Data Direction (DIR), Data Direction Toggle (DIRTGL) and Data
Direction Clear (DIRCLR) registers.
Changes in this register will also be reflected in the Data Direction (DIR), Data Direction Toggle (DIRTGL) and Data
Direction Clear (DIRCLR) registers.
Name:
DIRSET
Offset:
0x08+x*0x80 [x=0..2]
Reset:
0x00000000
Property:
Write-Protected
z
Bits 31:0 – DIRSET[31:0]: Port Data Direction Set
0: The I/O pin direction is cleared.
1: The I/O pin direction is set.
Writing a zero to a bit has no effect.
Writing a one to a bit will set the corresponding bit in the DIR register, which configures the I/O pin as an output.
0: The I/O pin direction is cleared.
1: The I/O pin direction is set.
Writing a zero to a bit has no effect.
Writing a one to a bit will set the corresponding bit in the DIR register, which configures the I/O pin as an output.
Bit
31
30
29
28
27
26
25
24
DIRSET[31:24]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
23
22
21
20
19
18
17
16
DIRSET[23:16]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
DIRSET[15:8]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
DIRSET[7:0]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0