CXD5602 User Manual
-
97/1010
-
3.2.4.3
External Interrupt
Selected I/O pins described in the section 3.2.4.2 and some other pins (refer to Table General Purpose
Input/Output (GPIO)-27) can be communicated to SYSCPU and DSP as external interrupts with no changes.
Besides, not only I/O pins’ values themselves can be communicated to SYSCPU and DSP, but information that an
event has been detected (refer to 3.2.4.4) can be as well.
Figure General Purpose Input/Output (GPIO)-20 shows the function in the Event Detect Block, which is explained
in this section.
Output Selection
0: The value of the I/O pin is communicated as an interrupt signal with no changes.
1: The inverted value of the I/O pin is communicated as an interrupt signal.
2: The result of the event detection is communicated as an interrupt signal with no changes.
3: When an event is detected, the register is asserted and communicated as a latched interrupt signal.
4-7: The output value is tied to “0”.
Internal signal detection
External
signal select
External signal detection
......
Instant High
Instant Low
Level High
Level Low
Pos edge
Neg edge
Chattering removal
PM
U
_WA
K
E_
TR
IG
_N
O
IS
EC
U
T
EN
x
Pos/Neg edge
or
0
1
0
1
2
3
4
5
6
0
1
Clr
Set
PM
U
_WA
K
E_
TR
IG
_I
N
TD
ETx
PM
U
_WA
K
E_
TR
IG
x_
CL
R
Level
Level
Pulse
Pulse
Pulse
Pulse
Pulse
2
3
4
0
PM
U
_WA
K
E_
TR
IG
_C
P
U
IN
TS
EL
x
PM
U
_WA
K
E_
TR
IG
_EN
x
PM
U
_WA
K
E_
TR
IG
x_
R
A
W
PM
U
_WA
K
E_
TR
IG
x
Wakeup factor
(to PMU)
0
1
Pos edge
Pulse
Clr
Set
from I/O
CRG
SCU
RTC0
64
to
1
USB_VBUS
PMIC_INT
SEN_INT
HVDD_DET
HIF_UART_RXD
HIF_SPI_CS_X
HIF_SCL_LOW
20
Event Detect
4
4
GNSS
SYSIOP_SUB
HIF_DETECT_I2C
_SLAVE
INT_PMIC_I2CM
PMU
14
20
EXDEVICE[11:0]
USBVBUS
USBVBUSN
HVDD
PMIC_INT
Interrupt
(to CPU/DSP)
14
16
Figure General Purpose Input/Output (GPIO)-20 External Interrupt Selection
Содержание CXD5602
Страница 1: ...CXD5602 User Manual 1 1010 CXD5602 User Manual ...
Страница 36: ...CXD5602 User Manual 36 1010 2 3 Block Diagram Figure Block Diagram 1 CXD5602 Block Diagram ...
Страница 144: ...CXD5602 User Manual 144 1010 GNSS_RAMMODE_SEL 0x3F000FFF SRAM GNSS BB 0 5 ON ...
Страница 835: ...CXD5602 User Manual 835 1010 enable disable ...
Страница 1007: ...CXD5602 User Manual 1007 1010 Revision History Date Revision Description 2019 07 05 1 0 0 Initial version ...