Product Specs

20 GPIO — General purpose input/output
Page
126
Bit number
31 30
29
28
27
26
25
24
23 22 21 20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Id
f e
d
c
b
a
Z
Y
X W V U
T
S
R
Q
P
O
N
M
L
K
J
I
H
G
F
E
D
C
B
A
Reset 0x00000000
0 0
0
0
0
0
0
0
0 0 0 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Id
RW Field
Value Id
Value
Description
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
D
RW
PIN3
Set as output pin 3
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
E
RW
PIN4
Set as output pin 4
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
F
RW
PIN5
Set as output pin 5
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
G
RW
PIN6
Set as output pin 6
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
H
RW
PIN7
Set as output pin 7
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
I
RW
PIN8
Set as output pin 8
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
J
RW
PIN9
Set as output pin 9
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
K
RW
PIN10
Set as output pin 10
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
L
RW
PIN11
Set as output pin 11
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
M
RW
PIN12
Set as output pin 12
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
N
RW
PIN13
Set as output pin 13
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
O
RW
PIN14
Set as output pin 14
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect
P
RW
PIN15
Set as output pin 15
Input
0
Read: pin set as input
Output
1
Read: pin set as output
Set
1
Write: writing a '1' sets pin to output; writing a '0' has no effect