Product Specs

20 GPIO — General purpose input/output
Page
133
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
Latched
1
Criteria has been met
d
RW
PIN29
Status on whether PIN29 has met criteria set in
PIN_CNF29.SENSE register. Write '1' to clear.
NotLatched
0
Criteria has not been met
Latched
1
Criteria has been met
e
RW
PIN30
Status on whether PIN30 has met criteria set in
PIN_CNF30.SENSE register. Write '1' to clear.
NotLatched
0
Criteria has not been met
Latched
1
Criteria has been met
f
RW
PIN31
Status on whether PIN31 has met criteria set in
PIN_CNF31.SENSE register. Write '1' to clear.
NotLatched
0
Criteria has not been met
Latched
1
Criteria has been met
20.3.9 DETECTMODE
Address offset: 0x524
Select between default DETECT signal behaviour and LDETECT mode
Bit number
Id
Reset 0x00000000
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
A
0
Id RW Field
Value Id
Value
Description
A RW DETECTMODE
Select between default DETECT signal behaviour and LDETECT
mode
Default
0
DETECT directly connected to PIN DETECT signals
LDETECT
1
Use the latched LDETECT behaviour
20.3.10 PIN_CNF[0]
Address offset: 0x700
Configuration of GPIO pins
Bit number
Id
Reset 0x00000002
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
E
0
16
E
0
15
0
14
0
13
0
12
0
11
0
10
D
0
9
D
0
8
D
0
7
0
6
0
5
0
4
0
3
C
0
2
C
0
1
B
1
0
A
0
Id RW Field
Value Id
Value
Description
A
RW
DIR
Input
0
Pin direction. Same physical register as DIR register
Configure pin as an input pin
Output
1
Configure pin as an output pin
B
RW
INPUT
Connect or disconnect input buffer
Connect
0
Connect input buffer
Disconnect
1
Disconnect input buffer
C
RW
PULL
Pull configuration
Disabled
0
No pull
Pulldown
1
Pull down on pin
Pullup
3
Pull up on pin
D
RW
DRIVE
Drive configuration
S0S1
0
Standard '0', standard '1'
H0S1
1
High drive '0', standard '1'
S0H1
2
Standard '0', high drive '1'
H0H1
3
High drive '0', high 'drive '1''
D0S1
4
Disconnect '0' standard '1' (normally used for wired-or
connections)