SAB80C517_05 Datasheet, PDF (155/323 Pages) Siemens Semiconductor Group – 8-Bit CMOS Single-Chip Microcontroller

Interrupt System
Figure 8-3
Special Function Register IEN1 (Address 0B8H)
0BFH 0BEH 0BDH 0BCH 0BBH 0BAH 0B9H 0B8H
0B8H EXEN2 SWDT EX6 EX5 EX4 EX3 EX2 EADC IEN1
This bit is not used for interrupt control.
Bit
EADC
EX2
EX3
EX4
EX5
EX6
EXEN2
Function
Enables or disables the A/D converter interrupt.
If EADC = 0, the A/D converter interrupt is disabled.
Enables or disables external interrupt 2/capture/compare interrupt 4.
If EX2 = 0, external interrupt 2 is disabled.
Enables or disables external interrupt 3/capture/compare interrupt 0.
If EX3 = 0, external interrupt 3 is disabled.
Enables or disables external interrupt 4/capture/compare interrupt 1.
If EX4 = 0, external interrupt 4 is disabled.
Enables or disables external interrupt 5/capture/compare interrupt 2.
If EX5 = 0, external interrupt 5 is disabled.
Enables or disables external interrupt 6/capture/compare interrupt 3.
If EX6 = 0, external interrupt 6 is disabled.
Exables or disables the timer 2 external reload interrupt.
EXEN2 = 0 disables the timer 2 external reload interrupt.
The external reload function is not affected by EXEN2.
Semiconductor Group
156