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13.1.2 Block Diagram
Figure 13-1 shows a block diagram of the A/D converter.
AV
CC
10-bit D/A
AV
SS
AN
0
AN
1
AN
2
Analog
AN
3
multi-
AN
plexer
4
AN
5
AN
6
AN
7
ADTRG
Legend
ADCR:
A/D control register
ADCSR:
A/D control/status register
ADDRA:
A/D data register A
ADDRB:
A/D data register B
ADDRC:
A/D data register C
ADDRD:
A/D data register D
412
+
–
Comparator
Sample-and-
hold circuit
Figure 13-1 A/D Converter Block Diagram
Module data bus
Control circuit
Internal
data bus
ø/8
ø/16
ADI
interrupt
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