C515A_9708 Datasheet, PDF (111/182 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C515A
IEN1 (B8 _H )
EXEN2 SWDT EX6
EX5
EX4
EX3
EX2 EADC
IRCON (C0 _H )
EXF2 TF2 IEX6 IEX5 IEX4 IEX3 IEX2 IADC
P6 (DB _H )
P6.7 P6.6 P6.5 P6.4 P6.3 P6.2 P6.1 P6.0
ADCON1 (DC _H )
ADCL
MX2 MX1 MX0
ADCON0 (D8 _H )
BD
CLK ADEX BSY ADM MX2 MX1 MX0
Internal
Bus
Port 6
MUX
f _OSC / 2
Clock
Prescaler
8, 4
V _AREF
V _AGND
S&H
Conversion Clock f _ADC
Input Clock f _IN
ADDATH
(D9 _H )
Single /
Continuous Mode
.2
ADDATL
(DA _H )
.3
.4
.5
A/D
.6
Converter
.7
.8 LSB
MSB .1
P4.0 / ADST
Shaded Bit locations are not used in ADC - functions.
Start of
conversion
Internal
Bus
Write to ADDATL
MCB03263
06 02 1997
Figure 6-31
Block Diagram of the A/D Converter
Semiconductor Group
6-60
1997-08-01