RX610 Group
10. ICU
R01UH0032EJ0120 Rev.1.20
Page 236 of 1006
Feb 20, 2013
10.3
Vector Table
The interrupt control unit detects two types of interrupt exceptions: maskable interrupts and the non-maskable interrupt.
When the CPU accepts an interrupt or non-maskable interrupt, it acquires a four-byte vector address from the vector
table.
10.3.1
Interrupt Vector Table
The interrupt vector table is placed in the 1024-byte range (4 bytes x 256 sources) beginning at the address specified in
the interrupt table register (INTB) of the CPU. Write a value to the INTB register before enabling interrupts. Setting this
to a multiple of four speeds up the execution of interrupt exception handling.
Table 10.4 shows the interrupt vector table. "Sstb recovery" means recovery from software (S/W) standby mode, and
"Sacs recovery" means recovery from all-module clock stop mode.
Table 10.4 Interrupt Vector Table
Priority
Interrupt
Request
Source
Name
Vector
Number
Vector Address
Offset
Form of
Detection
Selectable Interrupt Request Destination
IER
IPR
CPU DTC DMAC
Sstb
Recovery
Sacs
Recovery
High
↑
↓
Low
Reserved
0
0000h
×
×
×
×
×
Reserved
1
0004h
×
×
×
×
×
Reserved
2
0008h
×
×
×
×
×
Reserved
3
000Ch
×
×
×
×
×
Reserved
4
0010h
×
×
×
×
×
Reserved
5
0014h
×
×
×
×
×
Reserved
6
0018h
×
×
×
×
×
Reserved
7
001Ch
×
×
×
×
×
Reserved
8
0020h
×
×
×
×
×
Reserved
9 to 15
0024h to 003Ch
×
×
×
×
×
Bus error
BUSERR
16
0040h
Level
√
×
×
×
×
ER02.IEN0
IPR00
Reserved
17
0044h
×
×
×
×
×
IER02. EN1
Reserved
18
0048h
×
×
×
×
×
IER02. EN2
Reserved
19
004Ch
×
×
×
×
×
IER02. EN3
Reserved
20
0050h
×
×
×
×
×
IER02. EN4
FCU
FIFERR
21
0054h
Level
√
×
×
×
×
ER02.IEN5
IPR01
Reserved
22
0058h
×
×
×
×
×
ER02.IEN6
FRDYI
23
005Ch
Edge
√
×
×
×
×
ER02.IEN7
IPR02
Reserved
24
0060h
×
×
×
×
×
ER03.IEN0
Reserved
25
0064h
×
×
×
×
×
ER03.IEN1
Reserved
26
0068h
×
×
×
×
×
ER03.IEN2
Reserved
27
006Ch
×
×
×
×
×
ER03.IEN3
CMT
unit 0
CMT0
28
0070h
Edge
√
√
√
×
×
ER03.IEN4
IPR04
CMT1
29
0074h
Edge
√
√
√
×
×
ER03.IEN5
IPR05
CMT
unit 1
CMT2
30
0078h
Edge
√
√
√
×
×
ER03.IEN6
IPR06
CMT3
31
007Ch
Edge
√
√
√
×
×
ER03.IEN7
IPR07
Reserved
32 to 63
0080h to 00FCh
×
×
×
×
×