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2 input/output pins – Renesas H8S/2111B User Manual

Page 449

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Rev. 1.00, 05/04, page 415 of 544

16.2 Input/Output

Pins

Table 16.1 summarizes the pins used by the A/D converter. The 6 analog input pins are divided
into two groups consisting of four channels and two channels. Analog input pins 0 to 3 (AN0 to
AN3) comprising group 0 and analog input pins 4 and 5 (AN4 and AN5) comprising group 1. The
AVcc and AVss pins are the power supply pins for the analog block in the A/D converter.

Table 16.1 Pin Configuration

Pin Name

Symbol

I/O

Function

Analog power supply pin

AV

CC

Input

Analog block power supply and
reference voltage

Analog ground pin

AV

SS

Input

Analog block ground and reference
voltage

Reference power supply pin AVref

Input

Reference voltage for A/D conversion

Analog input pin 0

AN0

Input

Analog input pin 1

AN1

Input

Analog input pin 2

AN2

Input

Analog input pin 3

AN3

Input

Group 0 analog input pins

Analog input pin 4

AN4

Input

Analog input pin 5

AN5

Input

Group 1 analog input pins

A/D external trigger input pin

ADTRG

Input

External trigger input pin for starting A/D
conversion

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