CXD5602 User Manual
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3.3
Interrupt
3.3.1
Overview and Features
The LSI has individual interrupt controllers for the SYSIOP, GNSS, and APP.
The 128 bit interrupt factors are connected to the CPUs of each SYSIOP, GNSS, and APP.
Interrupt requests are divided into two main categories: one is internal interrupt generated from each CPU core or
Peripheral, and another is external interrupt from I/O.
As external interrupts, signals from I/O can be used without any change, and results of event detection by GPIO
can be used as well.
Interrupt input Register
Interrupt input Register
Interrupt input Register
Interrupt input Register
Interrupt input Register
Interrupt input Register
Interrupt input Register
Interrupt input Register
Cortex-M0+
PID0
System and I/O Processor
32
GNSS DSP
128
Application Processor
WDT
IRQ
NMI
Cortex-M4
PID1
IRQ
NMI
DEBUG
TIMER
Cause1[21]
Cause1[20]
Cause1[22]
Cause1[19:17]
WDTRES
WDTINT
Cause1[23]
Cause3[9:8]
WDT
WDTRES
WDTINT
Cause1[24]
TIMER
Cause1[19:17]
DEBUG
Cause3[9:8]
Cause1[21]
Cause1[20]
SW INT
Cause3[13]
FIFO
Cause3[31:16]
semaphore
Cause3[15:14]
System Reset
(to CRG)
to
32
bit
SW INT
Cause3[13]
Cause3[31:16]
Cause3[15:14]
Cause1[4]
EN Reg
MA
S
K
MA
S
K
EN Reg
128
Cortex-M4
PID
n
(
n
:2-7)
IRQ
NMI
Cause3[3:1]
Cause2[13:12]
Cause3[5]
Cause3[4]
Cause3[31:16]
Cause3[15:14]
Cause3[0]
WDT
TIMER
DEBUG
WDTRES
WDTINT
MA
S
K
EN Reg
Interrupt factor
(I/O, SYSIOP, GNSS, APP)
128
WDTRESOUT
Figure Interrupt-25 Interrupt Connection Diagram
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