
352
Chapter 20
Interrupt Functions
User’s Manual U16504EE1V1UD00
20.2 Interrupt Sources and Configuration
There are total of 24 interrupt sources: non-maskable, maskable, and software interrupts.
Notes: 1.
Default priorities are intended for two or more simultaneously generated maskable
interrupt requests. 0 is the highest priority and 22 is the lowest priority.
2.
Basic configuration types (A) to (D) correspond to (A) to (D) of Figure 20-1on page 353.
Table 20-1:
Interrupt Source List
Mask-
ability
Interrupt
Priority
Note 1
Interrupt Source
Internal/
External
Vector
Address
Basic
Structure
Type
Note 2
Name
Trigger
Non-
maskable
_
INTWDT
Overflow of watchdog timer (When the Watchdog
timer NMI is selected)
Internal
0004H
(A)
Maskable
0
INTWDT
Overflow of watchdog timer (When the interval
timer mode is selected)
(B)
1
INTAD
End of A/D converter conversion
0006H
2
INTOVF
Overflow of 16-bit timer 2
0008H
3
INTTM20match signal
000AH
4
INTTM21match signal
000CH
5
INTTM22match signal
000EH
6
INTP0
Pin input edge detection
External
0010H
(C)
7
INTP1
0012H
8
INTP2
0014H
9
INTCE
CAN Error
Internal
0016H
(B)
10
INTCR
CAN Receive
0018H
11
INTCT0
CAN Transmit buffer 0
001AH
12
INTCT1
CAN Transmit buffer 1
001CH
13
INTCSI30 End of serial interface channel 30 (SIO30)transfer
001EH
14
INTSER0 Channel 1 UART reception error generation
0020H
15
INTSR0
End of channel 1 UART reception
0022H
16
INTST0
End of channel 1 UART transfer
0024H
17
INTTM50signal
0026H
18
INTTM51signal
0028H
19
INTTM52 Generation of 8-bit timer 52 match signal 002AH
002AH
20
INTWTI
Reference time interval signal from watch timer
002EH
21
INTWT
Reference time interval signal from watch timer
0030H
22
INTCSI31 End of serial interface channel 31 (SIO31) transfer
0032H
Software
_
BRK
BRK instruction execution
Internal 003EH
(D)