Product Specs

20 GPIO — General purpose input/output
Page
127
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
Q
RW
PIN16
Input
0
Set as output pin 16
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
R
RW
PIN17
Input
0
Set as output pin 17
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
S
RW
PIN18
Input
Output
Set
0
1
1
Set as output pin 18
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
T
RW
PIN19
Input
Output
Set
0
1
1
Set as output pin 19
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
U
RW
PIN20
Input
Output
Set
0
1
1
Set as output pin 20
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
V
RW
PIN21
Input
Output
Set
0
1
1
Set as output pin 21
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
W
RW
PIN22
Input
Output
Set
0
1
1
Set as output pin 22
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
X
RW
PIN23
Input
Output
Set
0
1
1
Set as output pin 23
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
Y
RW
PIN24
Input
Output
Set
0
1
1
Set as output pin 24
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
Z
RW
PIN25
Input
Output
Set
0
1
1
Set as output pin 25
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
a
RW
PIN26
Input
Output
Set
0
1
1
Set as output pin 26
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
b
RW
PIN27
Input
Output
Set
0
1
1
Set as output pin 27
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
c
RW
PIN28
Input
Output
Set
0
1
1
Set as output pin 28
Read: pin set as input
Read: pin set as output
Write: writing a '1' sets pin to output; writing a '0' has no effect
d
RW
PIN29
Input
0
Set as output pin 29
Read: pin set as input
Output
1
Read: pin set as output