19.2 SFRs Associated with Interrupts
The Special Function Registers associated with the interrupts are shown below.
IE (Address=A8H, Interrupt Enable Register, Reset Value=0x00,0000B)
7
6
-
5
4
3
2
1
0
EA
ET2
ES
ET1
EX1
ET0
EX0
EA: Global disable bit. If EA = 0, all interrupts are disabled. If EA = 1, each interrupt can be individually
enabled or disabled by setting or clearing its enable bit.
ET2: Timer 2 interrupt enable bit.
ES: Serial Port interrupt enable bit.
ET1: Timer 1 interrupt enable bit.
EX1: External interrupt 1 enable bit.
ET0: Timer 0 interrupt enable bit.
EX0: External interrupt 0 enable bit.
IP (Address=B8H, Interrupt Priority Register, Reset Value=xx00,0000B)
7
6
5
4
3
2
1
0
-
-
PT2
PS
PT1
PX1
PT0
PX0
PT2: Timer 2 interrupt priority bit.
PS: Serial Port interrupt priority bit.
PT1: Timer 1 interrupt priority bit.
PX1: External interrupt 1 priority bit.
PT0: Timer 0 interrupt priority bit.
PX0: External interrupt 0 priority bit.
IPH (Address=B7H, Interrupt Priority High Register, Reset Value=0000,0000B)
7
6
5
4
3
2
1
0
PX3H
PX2H
PT2H
PSH
PT1H
PX1H
PT0H
PX0H
PX3H: External interrupt 3 priority bit, high.
PX2H: External interrupt 2 priority bit, high.
PT2H: Timer 2 interrupt priority bit, high.
PSH: Serial Port interrupt priority bit, high.
PT1H: Timer 1 interrupt priority bit, high.
PX1H: External interrupt 1 priority bit, high.
PT0H: Timer 0 interrupt priority bit, high.
PX0H: External interrupt 0 priority bit, high.
AUXIE (Address=ADH, Auxiliary Interrupt Enable Register, Reset Value=xx00,0000B)
7
6
5
4
3
2
1
0
-
-
EKB
ES2
EBD
EPCA
EADC
ESPI
EKB: Keypad interrupt enable bit.
ES2: UART2 interrupt enable bit.
EBD: Brownout Detection interrupt enable bit.
EPCA: PCA interrupt enable bit.
EADC: ADC interrupt enable bit.
ESPI: SPI interrupt enable bit.
91
MPC82G516A Data Sheet
MEGAWIN
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
