C868_02 Datasheet, PDF (199/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
Interrupt System
IRCON1
External Interrupt Request Register 1
7
6
5
4
3
-
-
-
-
-
r
r
r
r
r
[Reset value: XXXXXXX0_B]
2
1
0
-
-
IADC
r
r
rwh
Field
IADC
-
Bits Typ Description
0
rwh Interrupt Request Flag for ADC
0 : Interrupt request is not active, cleared by
software. (default)
1 : Interrupt request is active, set by hardware.
[7:1] r
reserved;
returns ’0’ if read; should be written with ’0’;
The A/D converter interrupt is generated by IADC bit in register IRCON1. If an interrupt
is generated, in any case the converted result in ADDATH is valid on the first instruction
of the interrupt service routine. lf continuous conversion is established, IADC is set once
during each conversion. lf an A/D converter interrupt is generated, flag IADC will have to
be cleared by software.
User’s Manual
7-15
V 0.4, 2002-01