Chapter 3
Interrupts
Control Registers III - 23
3.2.2 External Interrupt Control Register
External Interrupt 0 to 6 Control Register (IRQnICR (n = 0, 1, 2, 3, 4, 5, 6))
External Interrupt 7 Control Register (IRQ7ICR)
bp 76543210
Bit name LV1 LV0 REDG - Reserved - IE IR
At reset00000000
Access R/W R/W R/W R R/W R R/W R/W
bp Bit name Description
7-6 LV1-0
Interrupt level
- Set interrupt level from 0 to 3.
5REDG
Interrupt trigger edge
0: Falling edge
1: Rising edge
4 - Always read as "0".
3 Reserved Must be set to "0".
2 - Always read as "0".
1IE
Interrupt enable control
0: Disable
1: Enable
0IR
Interrupt request detection
0: Not detected
1: Detected
bp 76543210
Bit name LV1 LV0
-
- Reserved - IE IR
At reset00000000
Access R/W R/W R/W R R/W R R/W R/W
bp Bit name Description
7-6 LV1-0
Interrupt level
- Set interrupt level from 0 to 3.
5-4 - Always read as "0".
3 Reserved Must be set to "0".
2 - Always read as "0".
1IE
Interrupt enable control
0: Disable
1: Enable
0IR
Interrupt request detection
0: Not detected
1: Detected
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