Megawin Technology Co., Ltd.
MG87FE/L52
10.0 Interrupt Structure
Interrupt Enable (IE) register
Name
IE
Bit7
EA
Bit6
-
Bit5
ET2
Bit4
ES
Bit3
ET1
Bit2
EX1
Bit1
ET0
Bit0
EX0
EA
-
Global interrupt enable flag when set. When cleared & all interrupts were disabled.
Reserved.
ET2
ES
When set, enable Timer-2 interrupt.
When set, enable the serial port interrupt.
When set, enable Timer-1 interrupt.
ET1
EX1
ET0
EX0
When set, enable external interrupt-1.
When set, enable Timer-0 interrupt.
When set, enable external interrupt-0.
Interrupt Priority Low (IPL) Register
Name
IPL
Bit7
-
Bit6
-
Bit5
PT2
Bit4
PS
Bit3
PT1
Bit2
PX1
Bit1
PT0
Bit0
PX0
PT2
PS
If set, Set priority for timer2 interrupt higher
If set, Set priority for serial port interrupt higher
If set, Set priority for timer1 interrupt higher
If set, Set priority for external interrupt 1 higher
If set, Set priority for timer0 interrupt higher
If set, Set priority for external interrupt 0 higher
PT1
PX1
PT0
PX0
Interrupt Priority High (IPH) Register
Name
IPH
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
PX3H
PX2H
PT2H
PSH
PT1H
PX1H
PT0H
PX0H
PX3H
PX2H
PT2H
PSH
If set, Set priority for external interrupt 3 highest
If set, Set priority for external interrupt 2 highest
If set, Set priority for timer2 interrupt highest
If set, Set priority for serial port interrupt highest
If set, Set priority for timer1 interrupt highest
If set, Set priority for external interrupt 1 highest
PT1H
PX1H
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Preliminary ver 1.3
Date: 2009-JAN-20
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
