FR65E Fujitsu Microelectronics, Inc., FR65E Datasheet - Page 47

• Manufacturer Part Number: FR65E
• Description: 32-bit Microcontroller
• Manufacturer: Fujitsu Microelectronics, Inc.

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 INT0-7 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
MB91307B
INT0
NMI
7
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