C509-L_97 Datasheet, PDF (188/290 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C509-L
The A/D converter interrupt is controlled by bits which are located in the SFRs IEN1 and IRCON.
Special Function Register IEN1 (Address B8H)
Special Function Register IRCON0 (Address C0H)
Reset Value : 00H
Reset Value : 00H
MSB
Bit No. BF_H
BE_H
B8H EXEN2 SWDT
BD_H
EX6
BC_H BB_H BA_H
EX5 EX4 EX3
LSB
B9_H B8_H
EX2 EADC
IEN1
C0H
C7_H
EXF2
C6_H C5_H
TF2 IEX6
C4_H C3_H C2_H
IEX5 IEX4 IEX3
C1_H C0_H
IEX2 IADC
IRCON0
Bit
EADC
IADC
The shaded bits are not used for A/D converter control.
Function
Enable A/D converter interrupt
If EADC = 0, the A/D converter interrupt is disabled
A/D converter interrupt request flag
Set by hardware at the end of an A/D conversion. Must be cleared by software.
Semiconductor Group
6-110
1997-10-01