Block Diagram - Renesas H8S/2319 series Hardware Manual

14.1.2

Block Diagram

Figure 14-1 shows a block diagram of the A/D converter.
AV
CC
10-bit
V
D/A converter
ref
AV
SS
AN0
AN1
AN2
AN3
AN4
AN5
AN6
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
Rev. 5.00, 12/03, page 518 of 1088
+
−
Comparator
Sample-and-
hold circuit
Figure 14-1 Block Diagram of A/D Converter
Module data bus
A A A A
D D D D
D D D D
R R R R
A B C D
Control circuit
Internal data bus
A A
D D
C C
S R
R
ADI interrupt
signal
Conversion start
trigger from 8-bit
timer or TPU