Datasheet

Section 12 A/D Converter
Rev. 6.00 Aug 04, 2006 page 418 of 680
REJ09B0145-0600
12.1.2 Block Diagram
Figure 12.1 shows a block diagram of the A/D converter.
Internal data bus
AMR
ADSR
ADRRH
ADRRL
Control logic
+
–
Com-
parator
AN
AN
AN
AN
AN
AN
AN
AN
AN
AN
AN
AN
ADTRG
AV
AV
CC
SS
Multiplexer
Reference
voltage
IRRAD
AV
CC
AV
SS
0
1
2
3
4
5
6
7
8
9
10
11
Legend:
AMR:
ADSR:
ADRR:
IRRAD:
A/D mode register
A/D start register
A/D result register
A/D conversion end interrupt request flag
Figure 12.1 Block Diagram of the A/D Converter