W78C801 Datasheet, PDF (6/18 Pages) Winbond – 8-BIT MICROCONTROLLER

W78C801
Interrupt Enable Register 0
Bit:
7
6
5
EA
-
-
Mnemonic: IE
EA : Global enable. Enable/disable all interrupts.
ET1: Enable Timer 1 interrupt
EX1: Enable external interrupt 1
ET0: Enable Timer 0 interrupt
EX0: Enable external interrupt 0
4
3
2
1
0
-
ET1 EX1 ET0 EX0
Address: A8H
Interrupt Enable Register 1
Bit:
7
6
5
4
3
2
1
0
EX9 EX8 EX7 EX6 EX5 EX4 EX3 EX2
Mnemonic: IE1
Address: E8H
EX9: Enable external interrupt 9
EX8: Enable external interrupt 8
EX7: Enable external interrupt 7
EX6: Enable external interrupt 6
EX5: Enable external interrupt 5
EX4: Enable external interrupt 4
EX3: Enable external interrupt 3
EX2: Enable external interrupt 2
Note: 0 = interrupt disabled, 1 = interrupt enabled.
Interrupt Priority Register 0
Bit:
7
6
5
-
PS1 PT2
Mnemonic: IP0
4
3
2
1
0
PS PT1 PX1 PT0 PX0
Address: B8h
IP.7: Unused.
PS1: This bit defines the Serial port 1 interrupt priority. PS = 1 sets it to higher priority level.
PT2: This bit defines the Timer 2 interrupt priority. PT2 = 1 sets it to higher priority level.
PS : This bit defines the Serial port 0 interrupt priority. PS = 1 sets it to higher priority level.
PT1: This bit defines the Timer 1 interrupt priority. PT1 = 1 sets it to higher priority level.
PX1: This bit defines the External interrupt 1 priority. PX1 = 1 sets it to higher priority level.
PT0: This bit defines the Timer 0 interrupt priority. PT0 = 1 sets it to higher priority level.
PX0: This bit defines the External interrupt 0 priority. PX0 = 1 sets it to higher priority level.
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