Figure 16.1 Block Diagram Of A/D Converter - Renesas H8S/2111B Hardware Manual

A block diagram of the A/D converter is shown in figure 16.1.
AV
CC
AV
10-bit D/A
ref
AV
SS
AN0
AN1
AN2
AN3
AN4
AN5
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
Rev. 1.00, 05/04, page 414 of 544
A
D
D
R
A
+
Comparator
Sample-and-hold
circuit

Figure 16.1 Block Diagram of A/D Converter

Module data bus
A A A
A
D D D
D
D D D
C
R R R
S
B C D
R
Control circuit
Internal data bus
A
D
C
R
φ/8
φ/16
ADI interrupt signal
Conversion start trigger from 8-bit timer