Datasheet

C505/C505C/C505A/C505CA
Data Sheet 41 12.00
Figure 20
Block Diagram of the 10-Bit A/D Converter
ADC
Shaded Bit locations are not used in ADC-functions.
f
AGND
AREF
OSC
V
V
Port 1
Conversion
Prescaler
Clock
MUX
fConversion Clock
Input Clock f
IN
S&H
ADCON1 (DC )
ADCON0 (D8 )
ADCL1
H
ADCL0
H
IRCON (C0 )
P1ANA (90 )
EAN7
EAN6
H
H
BSY
EAN5
EAN4
IEN1 (B8 )
H
Write to ADDATL
MCB03636
(DA )
ADST
conversion
Converter
A / D
Continuous Mode
Single /
Start of
MSB
.6
.5
.4
LSB
.2
.3
.1
H
(D9 )
ADDAT
Bus
Internal
H
ADM MX2
MX2
EAN3
EAN2
MX1
MX1
MX0
MX0
EAN1
IADC
EAN0
EADC
Bus
Internal
.8
.7
IEX5
EX5
EXF2
EXEN2
BD
CLK
TF2
SWDT
IEX6
EX6
IEX4
EX4
IEX3
EX3
SWI
ECAN
ADDATH
(D9
H
)
ADDATL
(DA
H
)