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GPIO Registers
25.4.1.3 GPIO_EOI Register (offset = 20h) [reset = 0h]
GPIO_EOI is shown in Figure 25-9 and described in Table 25-8.
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
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