IXXBB1 Fujitsu Microelectronics, Inc., IXXBB1 Datasheet - Page 69

• Manufacturer Part Number: IXXBB1
• Description: 32-bit Proprietary Microcontroller Cmos Fr60 Mb91301 Series
• Manufacturer: Fujitsu Microelectronics, Inc.

4. External Interrupt/NMI Control Block
Block Diagram
Register List
External interrupt enable register (ENIR)
External interrupt request register (EIRR)
Request level setting register (ELVR)
The external interrupt control block controls external interrupt requests input to the NMI and INT0 to INT7 pins.
The interrupt trigger level can be selected from "H", "L", "rising edge", or "falling edge" (except for NMI).
Interrupt
request
R-bus
bit
bit
bit
bit
8
9
8
8
EN7
ER7
LB7
LB3
15
15
7
7
Gate
Interrupt level setting register
EN6
ER6
LA7
LA3
14
14
Interrupt request register
6
6
Interrupt enable register
EN5
ER5
LB6
LB2
13
13
5
5
Request F/F
EN4
ER4
LA6
LA2
12
12
4
4
EN3
ER3
LB5
LB1
11
11
3
3
Edge detection circuit
EN2
ER2
LA5
LA1
10
10
2
2
EN1
ER1
LB4
LB0
1
9
9
1
MB91301 Series
EN0
ER0
LA4
LA0
0
8
8
0
9
INT0 to INT7
NMI
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