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GIO Control Registers
1193
SPNU563A–March 2018
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General-Purpose Input/Output (GIO) Module
25.5.2 GIO Interrupt Detect Register (GIOINTDET)
The GIO module supports generation of an interrupt request to CPU when a rising edge, falling edge, or
both edges is detected on one or more GIO pin(s). The GIOINTDET register allows both rising and falling
edges to be detected, while the GIOPOL register allows the application to define whether a rising edge or
a falling edge is to be detected. Figure 25-6 and Table 25-3 describe this register.
Figure 25-6. GIO Interrupt Detect Register (GIOINTDET) [offset = 08h]
31 24 23 16
GIOINTDET 3 GIOINTDET 2
R/W-0 R/W-0
15 8 7 0
GIOINTDET 1 GIOINTDET 0
R/W-0 R/W-0
LEGEND: R/W = Read/Write; -n = value after reset
Table 25-3. GIO Interrupt Detect Register (GIOINTDET) Field Descriptions
Bit Field Value Description
31-24 GIOINTDET 3 Interrupt detection select for pins GIOD[7:0]
0 The flag sets on either a falling or a rising edge on the corresponding pin, depending on the polarity
setup in the polarity register (GIOPOL).
1 The flag sets on both the rising and falling edges on the corresponding pin.
23-16 GIOINTDET 2 Interrupt detection select for pins GIOC[7:0]
0 The flag sets on either a falling or a rising edge on the corresponding pin, depending on the polarity
setup in the polarity register (GIOPOL).
1 The flag sets on both the rising and falling edges on the corresponding pin.
15-8 GIOINTDET 1 Interrupt detection select for pins GIOB[7:0]
0 The flag sets on either a falling or a rising edge on the corresponding pin, depending on the polarity
setup in the polarity register (GIOPOL).
1 The flag sets on both the rising and falling edges on the corresponding pin.
7-0 GIOINTDET 0 Interrupt detection select for pins GIOA[7:0]
0 The flag sets on either a falling or a rising edge on the corresponding pin, depending on the polarity
setup in the polarity register (GIOPOL).
1 The flag sets on both the rising and falling edges on the corresponding pin.
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