HD6432345 Datasheet, PDF (517/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

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
A AAA
D DDD
D DDD
R RRR
A B CD
AA
DD
CC
SR
R
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
ADTRG
+
–
Comparator
Sample-and-
hold circuit
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
Conversion start
trigger from 8-bit
timer or TPU
Figure 14.1 Block Diagram of A/D Converter
504