Table 19.4 Interrupt Exception Handling Sources and Priority Order
Interrupt Source
NMI
IRL
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
IRL0
IRL1
IRL2
IRL3
H-UDI
H-UDI
GPIO
GPIOI
DMAC
DMTE0
DMTE1
DMTE2
DMTE3
DMTE4*
DMTE5*
DMTE6*
DMTE7*
DMAE
INTEVT
Interrupt Priority
Code
(Initial Value)
H'1C0
16
0 H'200
15
1 H'220
14
2 H'240
13
3 H'260
12
4 H'280
11
5 H'2A0
10
6 H'2C0
9
7 H'2E0
8
8 H'300
7
9 H'320
6
A H'340
5
B H'360
4
C H'380
3
D H'3A0
2
E H'3C0
1
H'240
15–0 (13)
H'2A0
15–0 (10)
H'300
15–0 (7)
H'360
15–0 (4)
H'600
15–0 (0)
H'620
15–0 (0)
H'640
15–0 (0)
H'660
H'680
H'6A0
H'780
H'7A0
H'7C0
H'7E0
H'6C0
IPR (Bit
Priority within
Numbers)
IPR Setting Unit
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
IPRD (15–12) —
IPRD (11–8)
—
IPRD (7–4)
—
IPRD (3–0)
—
IPRC (3–0)
—
IPRC (15–12) —
IPRC (11–8)
High
Low
Rev. 3.0, 04/02, page 737 of 1064
Default
Priority
High
Low