12.1.2
Block Diagram
Figure 12-1 shows a block diagram of the A/D converter.
ADTRG
AMR
AN0
AN1
AN2
AN3
AN4
AN5
Multiplexer
AN6
ADSR
AN7
AN8
AVCC
AN9
AN10
AN11
+
Com-
parator
Control logic
–
AVCC
AVSS
Reference
voltage
ADRRH
ADRRL
AVSS
IRRAD
Notation:
AMR: A/D mode register
ADSR: A/D start register
ADRR: A/D result register
IRRAD: A/D conversion end interrupt request flag
Figure 12-1 Block Diagram of the A/D Converter
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