TM4C1292NCZAD Datasheet, PDF (357/1844 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C1292NCZAD Microcontroller
Register 70: General-Purpose Input/Output Software Reset (SRGPIO), offset
0x508
The SRGPIO register provides software the capability to reset the available GPIO modules.
A peripheral is reset by software using a simple two-step process:
1. Software sets a bit (or bits) in the SRGPIO register. While the SRGPIO bit is 1, the peripheral
is held in reset.
2. Software completes the reset process by clearing the SRGPIO bit.
There may be latency from the clearing of the SRGPIO bit to when the peripheral is ready for use.
Software should check the corresponding PRGPIO bit to verify that the GPIO Module registers are
ready to be accessed.
Important: This register should be used to reset the GPIO modules.
General-Purpose Input/Output Software Reset (SRGPIO)
Base 0x400F.E000
Offset 0x508
Type RW, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
R17
R16
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R15
R14
R13
R12
R11
R10
R9
R8
R7
R6
R5
R4
R3
R2
R1
R0
Type RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:18
17
Name
reserved
R17
Type
RO
RW
Reset
0
0
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
GPIO Port T Software Reset
Value Description
0 GPIO Port T is not reset.
1 GPIO Port T is reset.
16
R16
RW
0
GPIO Port S Software Reset
Value Description
0 GPIO Port S is not reset.
1 GPIO Port S is reset.
June 18, 2014
357
Texas Instruments-Production Data