SAB80C515A-5 Datasheet, PDF (38/108 Pages) Siemens Semiconductor Group – 8-Bit CMOS Single-Chip Microcontroller Family

On-Chip Peripheral Components
Special Function Registers ADCON0, ADCON1
Bit No.
Addr.
0D8H
MSB
7
BD
6
5
4
3
2
CLK ADEX BSY ADM MX2
1
MX1
LSB
0
MX0 ADCON0
MSB
LSB
Bit No.
7
6
5
4
3
2
1
0
Addr.
0DCH
ADCL
MX3 MX2 MX1 MX0 ADCON1
These bits are not used in controling A/D converter functions in the 80C515A
Bit
ADEX
BSY
ADM
MX2 - MX0
ADCL
Function
Internal/external start of conversion.
When set, the external start of conversion by P4.0 / ADST is enabled
Busy flag.
This flag indicates whether a conversion is in progress (BSY = 1). The flag
is cleared by hardware when the conversion is finished.
A/D Conversion mode.
When set, a continuous conversion is selected.
If cleared, the converter stops after one conversion.
Select 8 input channels of the ADC.
Bits MX0 to MX2 can be written or read either in ADCON0 or in ADCON1
ADC Clock.
When set f_ADC = f_OSC / 16. Has to be set when f_OSC > 16 MHz
The reset value of ADCON0 and ADCON1 is 00H
Semiconductor Group
5-5