Input/Output Pins - Renesas H8S/2100 Series Hardware Manual

22.2

Input/Output Pins

Table 22.1 summarizes the pins used by the A/D converter.
The AVCC and AVSS pins are the power supply pins for the analog block in the A/D converter.
The AVref pin is a reference voltage pin for the A/D converter. The twelve analog input pins are
divided into two channel sets: analog input pins 0 to 7 (AN0 to AN7) comprising channel set 0
and analog input pins 8 to 11 (AN8 to AN11) comprising channel set 1.
Table 22.1 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
Analog input pin 8
Analog input pin 9
Analog input pin 10
Analog input pin 11
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
AN8 Input
AN9 Input
AN10 Input
AN11 Input
Function
Analog block power supply
Analog block ground
Reference voltage for A/D converter
Channel set 0 analog input
Channel set 1 analog input
Rev. 1.00 May 09, 2008 Page 695 of 954
Section 22 A/D Converter
REJ09B0462-0100