HD6433044 Datasheet, PDF (534/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

15.1.2 Block Diagram
Figure 15-1 shows a block diagram of the A/D converter.
Module data bus
On-chip
data bus
AV_CC
V _REF
AV _SS
10-bit D/A
AN ₀
AN ₁
AN ₂
AN ₃
AN ₄
AN ₅
AN ₆
AN ₇
+
–
Analog
multi-
plexer
Comparator
Sample-and-
hold circuit
ADTRG
Control circuit
ø/8
ø/16
ADI
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
Figure 15-1 A/D Converter Block Diagram
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