MB90480/485 Series
21. Interrupt Controller
The interrupt control register is built in interrupt controller, and is supported for all I/O of interrupt function.
This register sets corresponding peripheral interrupt level.
(1) Register List
Interrupt control registers
Address : ICR01 0000B1H
ICR03 0000B3H
15
14
13
12
11
10
9
8
ICR05 0000B5H
ICR07 0000B7H
ICR09 0000B9H
ICR11 0000BBH
ICR13 0000BDH
ICR15 0000BFH
ICR01,
03, 05,
07, 09,
⎯
⎯
⎯
⎯
Reserved
IL2
IL1
IL0
11, 13, 15
Read/write→
Initial value→
W
X
W
X
W
X
W
X
R/W
0
R/W
1
R/W
1
R/W
1
Interrupt control registers
Address : ICR00 0000B0H
ICR02 0000B2H
ICR04 0000B4H
ICR06 0000B6H
ICR08 0000B8H
ICR10 0000BAH
ICR12 0000BCH
ICR14 0000BEH
7
6
5
4
3
2
1
0
ICR00,
02, 04,
06, 08,
⎯
⎯
⎯
⎯
Reserved
IL2
IL1
IL0
10, 12, 14
Read/write→
Initial value→
W
X
W
X
W
X
W
X
R/W
0
R/W
1
R/W
1
R/W
1
Note : The use of access involving read-modify-write instructions may lead to abnormal operation, and should be
avoided.
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