mb91307r Fujitsu Microelectronics, Inc., mb91307r Datasheet - Page 52

• Manufacturer Part Number: mb91307r
• Description: 32-bit Microcontroller Cmos Fr60 Mb91307 Series
• Manufacturer: Fujitsu Microelectronics, Inc.

52
MB91307 Series
2. External Interrupt - NMI Control Block
(1) Overview
(2) Register List
(3) Block Diagram
• External interrupt enable register (ENIR)
• External interrupt source register (EIRR)
• Request level setting register (ELVR)
The External Interrupt-control block controls external interrupt requests input at the NMI and INT0 to INT7 pins.
The request level can be selected from “H,” “L,” “rising edge,” or “falling edge” detection (except for NMI).
Interrupt
request
R-bus
bit
bit
bit
bit
8
9
8
8
ER7
LB7
LB3
EN7
15
15
7
7
Gate
ER6
LA7
LA3
EN6
14
14
6
6
Interrupt level setting register
Interrupt enable register
Interrupt source register
ER5
LB6
LB2
EN5
13
13
5
5
Source F/F
ER4
LA6
LA2
EN4
12
12
4
4
ER3
LB5
LB1
EN3
11
11
3
3
Edge detection circuit
ER2
LA5
LA1
EN2
10
10
2
2
ER1
LB4
LB0
EN1
9
9
1
1
ER0
LA4
LA0
EN0
8
8
0
9
0
INT0 to INT7
NMI