5-2
Seiko Epson Corporation
S1C31D50 TECHNICAL MANUAL
(Rev. 1.00)
5.2.
Vector Table
The vector table contains the vectors to the interrupt handler routines (handler routine start address)
that will be read by the CPU to execute the handler when an interrupt occurs.
Table 5.2.1 shows the vector table.
Table 5.2.1 Vector Table
VTOR initial value = 0x0
Interrupt
number
IRQ
number
Vector
address
offset
Source
Hardware interrupt name
Cause of hardware interrupt
Priority
0
-
0x00
-
Stack pointer initial value
-
-
1
-
0x04
Reset
• Low input to the #RESET pin
• Power
-on reset
• Key reset
• Watchdog timer over
fl
ow *1
• Supply voltage detector reset
3
2
NMI
0x08
WDT
NMI
Watchdog timer over
fl
ow *1
-
3
-
0x0c
CPU
Hard fault
• Bus error
• Undefined instruction
• Unaligned address
etc
1
4
-
0x10
-
System Reserved
-
-
5
-
0x14
-
System Reserved
-
-
6
-
0x18
-
System Reserved
-
-
7
-
0x1c
-
System Reserved
-
-
8
-
0x20
-
System Reserved
-
-
9
-
0x24
-
System Reserved
-
-
10
-
0x28
-
System Reserved
-
-
11
-
0x2c
CPU
SV call
SVC instruction
Configurable
12
-
0x30
-
System Reserved
-
-
13
-
0x34
-
System Reserved
-
-
14
-
0x38
CPU
PendSV
-
Configurable
15
-
0x3c
Sys Tick
SysTick timer under
fl
ow
16
0
0x40
DMA
DMA controller interrupt
Transfer complete
Transfer error
17
1
0x44
SVD
Supply voltage detector
interrupt
Power supply voltage drop
detection
18
2
0x48
PORT01
Port01 interrupt
Port01 input
19
3
0x4c
PORT23
Port23 interrupt
Port23 input
20
4
0x50
PPORTothers
PortOthers interrupt
PortOthers input
21
5
0x54
CLG
Clock generator interrupt
IOSC oscillation stabilization
waiting completion
OSC1 oscillation stabilization
waiting completion
OSC3 oscillation stabilization
waiting completion
OSC1 oscillation stop detection
OSC3 oscillation auto-trimming
completion
22
6
0x58
RTC
Real-time clock interrupt
• 1
-day, 1-hour, 1-minute, and 1-
second
• 1/32
-second, 1/8-second, 1/4-
second, and 1/2-second
• Stopwatch 1 Hz, 10 Hz, and 100
Hz
• Alarm
• Theoretical regulation
completion
23
7
0x5c
HW
Proceesor
HW Proceesor interrupt
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