GPIO Registers
25.4.1.3 GPIO_EOI Register (offset = 20h) [reset = 0h]
GPIO_EOI is shown in
and described in
.
This module supports DMA events with its interrupt signal. This register must be written to after the DMA
completes in order for subsequent DMA events to be triggered from this module.
Figure 25-9. GPIO_EOI Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
Reserved
R-0h
7
6
5
4
3
2
1
0
Reserved
DMAEvent_Ack
R-0h
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 25-8. GPIO_EOI Register Field Descriptions
Bit
Field
Type
Reset
Description
31-1
Reserved
R
0h
0
DMAEvent_Ack
R/W
0h
Write 0 to acknowledge DMA event has been completed. Module will
be able to generate another DMA event only when the previous one
has been acknowledged using this register. Reads always returns 0.
4071
SPRUH73H – October 2011 – Revised April 2013
General-Purpose Input/Output
Copyright © 2011–2013, Texas Instruments Incorporated