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3.2.4.4 Event Detection Control
Event detection asserts when it detects that a signal meets conditions set for detection. It keeps the status until the
control register clears the status. Event Detection Control can perform edge detection, level detection, and instant
detection of external signals from I/O pins. Detected events can be used as interrupts.
Figure General Purpose Input/Output (GPIO)-21 shows the function in the Event Detect Block, which is explained
in this section.
Event Detect
CRG
4
SCU
4
RTC0
GNSS
SYSIOP_SUB
HI F_DETECT_I2C
_SLAVE
INT_PMIC_I2CM
PMU
External
signal select
from I/O
......
USB_VBUS
PMIC_INT
SEN_INT
HVDD_DET
HIF_UART_RXD
HIF_SPI_CS_X
HIF_SCL_LOW
Figure General Purpose Input/Output (GPIO)-21 Event Detection Control
Internal signal detection
0
Pos edge
14
1
External signal detection
20
Instant High
Instant Low
0
Level High
Chattering removal
1
Level Low
Pos edge
Neg edge
Pos/Neg edge
－100/1010－
Pulse
S et
C lr
Pulse
0
Pulse
0
1
Level
2
Level
3
S et
C lr
Pulse
4
Pulse
5
Pulse
6
or
CXD5602 User Manual
Wakeup factor
(to PMU)
14
20
Interrupt
(to CPU/DSP)
16
EXDEVICE[11:0]
USBVBUS
USBVBUSN
0
HVDD
1
PMIC_INT
2
3
4
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- Cxd5602 Outline
- Block Diagram
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