C28 General-Purpose Input/Output (GPIO)
424
SPRUH22I – April 2012 – Revised November 2019
Copyright © 2012–2019, Texas Instruments Incorporated
General-Purpose Input/Output (GPIO)
Figure 4-77. GPIO Low Power Mode Wakeup Select 1 (GPIOLPMSEL1) Register
31
30
29
28
27
26
25
24
GPIO31
GPIO30
GPIO29
GPIO28
GPIO27
GPIO26
GPIO25
GPIO24
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
23
22
21
20
19
18
17
16
GPIO23
GPIO22
GPIO21
GPIO20
GPIO19
GPIO18
GPIO17
GPIO16
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
15
14
13
12
11
10
9
8
GPIO15
GPIO14
GPIO13
GPIO12
GPIO11
GPIO10
GPIO9
GPIO8
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
7
6
5
4
3
2
1
0
GPIO7
GPIO6
GPIO5
GPIO4
GPIO3
GPIO2
GPIO1
GPIO0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -
n
= value after reset
(1)
This register is EALLOW protected.
Table 4-96. GPIO Low Power Mode Wakeup Select 1 (GPIOLPMSEL1) Register Field Descriptions
Bits
Field
Value
Description
(1)
31-0
GPIO31 - GPIO0
Low Power Mode Wakeup Selection 1. Each bit in this register corresponds to one GPIO
port A pin (GPIO0 - GPIO31).
0
If the bit is cleared, the signal on the corresponding pin will have no effect on the HALT and
STANDBY low power modes.
1
If the respective bit is set to 1, the signal on the corresponding pin is able to wake the
device from both HALT and STANDBY low power modes.
4.2.7.37 GPIO Low Power Mode Wakeup Select 2 (GPIOLPMSEL2) Register
The GPIO Low Power Mode Wakeup Select 2 (GPIOLPMSEL2) register is shown and described in the
figure and table below.
Figure 4-78. GPIO Low Power Mode Wakeup Select 2 (GPIOLPMSEL2) Register
31
30
29
28
27
26
25
24
GPIO63
GPIO62
GPIO61
GPIO60
GPIO59
GPIO58
GPIO57
GPIO56
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
23
22
21
20
19
18
17
16
GPIO55
GPIO54
GPIO53
GPIO52
GPIO51
GPIO50
GPIO49
GPIO48
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
15
14
13
12
11
10
9
8
GPIO47
GPIO46
GPIO45
GPIO44
GPIO43
GPIO42
GPIO41
GPIO40
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
7
6
5
4
3
2
1
0
GPIO39
GPIO38
GPIO37
GPIO36
GPIO35
GPIO34
GPIO33
GPIO32
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -
n
= value after reset
(1)
This register is EALLOW protected.
Table 4-97. GPIO Low Power Mode Wakeup Select 2 (GPIOLPMSEL2) Register Field Descriptions
Bits
Field
Value
Description
(1)
31-0
GPIO63 - GPIO32
Low Power Mode Wakeup Selection 1. Each bit in this register corresponds to one GPIO
port B pin (GPIO32 - GPIO63) .
0
If the bit is cleared, the signal on the corresponding pin will have no effect on the HALT and
STANDBY low power modes.
1
If the respective bit is set to 1, the signal on the corresponding pin is able to wake the
device from both HALT and STANDBY low power modes.