HD64F2357F20V Datasheet, PDF (570/1049 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-chip Microcomputer H8S Family / H8S/2300 Series

16.1.2 Block Diagram
Figure 16-1 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
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
8-bit timer or
conversion start
trigger from TPU
Figure 16-1 Block Diagram of A/D Converter
16.1.3 Pin Configuration
Table 16-1 summarizes the input pins used by the A/D converter.
The AV_CC and AV_SS pins are the power supply pins for the analog block in the A/D converter. The V_ref pin is the A/D
conversion reference voltage pin.
The eight analog input pins are divided into two groups: group 0 (AN0 to AN3), and group 1 (AN4 to AN7).
Rev.6.00 Oct.28.2004 page 540 of 1016
REJ09B0138-0600H