C868_02 Datasheet, PDF (193/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

Field
EX0
-
C868
Interrupt System
Bits Typ Description
7
rw External interrupt 0 enable.
If EX0 = 0, the external interrupt 0 is disabled.
If EX0 = 1, the external interrupt 0 is enabled.
6
r reserved;
returns ’0’ if read; should be written with ’0’;
The SFR IEN1 contains the enable bits for the external interrupts 2 to 3, and the A/D
converter interrupt.
IEN1
Interrupt Enable Register 1
[Reset value: XXXXX000_B]
7
6
5
4
3
2
1
0
-
-
-
-
-
EX3
EX2
EADC
r
r
r
r
r
rw
rw
rw
Field
EADC
EX2
EX3
-
Bits Typ Description
0
rw A/D converter interrupt enable
If EADC = 0, the A/D converter interrupt is disabled.
If EADC = 1, the A/D converter interrupt is enabled.
1
rw External interrupt 2 enable
If EX2 = 0, external interrupt 2 is disabled.
If EX2 = 1, external interrupt 2 is enabled.
2
rw External interrupt 3 / Timer 2 capture/compare
interrupt 0 enable
If EX3 = 0, external interrupt 3 is disabled.
If EX3 = 1, external interrupt 3 is enabled.
[7:3] r
reserved;
returns ’0’ if read; should be written with ’0’;
User’s Manual
7-9
V 0.4, 2002-01