Section 16 A/D Converter
AV
CC
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
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
Rev. 1.00 Aug. 28, 2006 Page 276 of 400
REJ09B0268-0100
10-bit D/A
+
Comparator
Sample-and-
hold circuit
Figure 16.1 Block Diagram of A/D Converter
Module data bus
A
A
A
A
A
A
D
D
D
D
D
D
D
D
D
D
C
C
R
R
R
R
S
R
A
B
C
D
R
Control circuit
Internal data bus
ø/4
ø/8
ADI
interrupt