W78ERD2 Datasheet, PDF (22/72 Pages) Winbond – 8-BIT MICROCONTROLLER

W78ERD2
External Interrupt Control
Bit:
7
6
5
4
3
2
1
0
PX3 EX3 IE3
IT3 PX2 EX2 IE2
IT2
Mnemonic: XICON Address: C0h
BIT
NAME
FUNCTION
7
PX3 External interrupt 3 priority high if set
6
EX3 External interrupt 3 enable if set
5
IE3
1: IE3 is set/cleared automatically by hardware when interrupt is detected /
serviced
4
IT3
1: External interrupt 3 is falling-edge/low-level triggered when this bit is set /
cleared by software
3
PX2 External interrupt 2 priority high if set
2
EX2 External interrupt 2 enable if set
1
IE2
1: IE2 is set/cleared automatically by hardware when interrupt is detected /
serviced
0
IT2
1: External interrupt 2 is falling-edge/low-level triggered when this bit is set /
cleared by software
External Interrupt High Control
Bit:
7
6
5
4
3
2
1
0
PXH3
-
-
-
PXH2
-
-
-
Mnemonic: XICON Address: C0h
BIT
NAME
FUNCTION
7
PXH3 External interrupt 3 priority highest if set
6
-
Reserve
5
-
Reserve
4
-
Reserve
3
PXH2 External interrupt 2 priority highest if set
2
-
Reserve
1
-
Reserve
0
-
Reserve
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