Input/Output Pins; Table 19.1 Pin Configuration - Renesas H8S Series Hardware Manual

19.2

Input/Output Pins

Table 19.1 summarizes the pins used by the A/D converter. The eight analog input pins are
divided into two groups consisting of four channels. Analog input pins 0 to 3 (AN0 to AN3)
comprising group 0 and analog input pins 4 to 7 (AN4 to AN7) comprising group1. The AVCC
and AVSS pins are the power supply pins for the analog block in the A/D converter.

Table 19.1 Pin Configuration

Pin Name
Analog power supply
pin
Analog ground pin
Reference power
supply pin
Analog input pin 0
Analog input pin 1
Analog input pin 2
Analog input pin 3
Analog input pin 4
Analog input pin 5
Analog input pin 6
Analog input pin 7
A/D external trigger
input pin
Symbol I/O
AVCC Input
AVSS Input
AVref Input
AN0 Input
AN1 Input
AN2 Input
AN3 Input
AN4 Input
AN5 Input
AN6 Input
AN7 Input
ADTRG
Input
Function
Analog block power supply
Analog block ground and reference voltage
Analog block reference voltage
Group 0 analog input pins
Group 1 analog input pins
External trigger input pin for starting A/D
conversion
Rev. 3.00 Jul. 14, 2005 Page 719 of 986
Section 19 A/D Converter
REJ09B0098-0300