D12320VF25V Datasheet, PDF (566/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 14 A/D Converter (8 Analog Input Channel Version)
14.1.2 Block Diagram
Figure 14.1 shows a block diagram of the A/D converter.
Module data bus
Internal data bus
AVCC
Vref
AVSS
10-bit
D/A converter
A AAA
D DDD
D DDD
R RRR
A B CD
AA
DD
CC
SR
R
AN0
AN1
+
AN2
−
AN3
Comparator
AN4
AN5
Sample-and-
AN6
hold circuit
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
Control circuit
ADI interrupt
signal
Conversion start
trigger from 8-bit
timer or TPU
Figure 14.1 Block Diagram of A/D Converter
Rev.7.00 Feb. 14, 2007 page 532 of 1108
REJ09B0089-0700