Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Ficha De Dados
Códigos do produto
ATSAMD20-XPRO
294
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
21.8.4 Data Direction Toggle
This register allows the user to toggle the direction of one or more I/O pins, without doing a read-modify-write operation.
Changes in this register will also be reflected in the Data Direction (DIR), Data Direction Set (DIRSET) and Data Direction
Clear (DIRCLR) registers.
Changes in this register will also be reflected in the Data Direction (DIR), Data Direction Set (DIRSET) and Data Direction
Clear (DIRCLR) registers.
Name:
DIRTGL
Offset:
0x0C+x*0x80 [x=0..1]
Reset:
0x00000000
Property:
Write-Protected
z
Bits 31:0 – DIRTGL[31:0]: Port Data Direction Toggle
0: The I/O pin direction is cleared.
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 toggle the corresponding bit in the DIR register, which reverses the direction of the I/O
pin.
pin.
Bit
31
30
29
28
27
26
25
24
DIRTGL[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
DIRTGL[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
DIRTGL[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
DIRTGL[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