R5F2138CSNFP datasheet(14/63 Pages) RENESAS

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R8C/38T-A Group

1. Overview

R01DS0081EJ0100 Rev.1.00

Page 14 of 60

Dec 09, 2011

Table 1.11

Pin Functions (2)

Item

Pin Name

I/O

Description

A/D converter

AN0 to AN19

Analog input for the A/D converter.

ADTRG

External trigger input for the A/D converter.

Comparator B

IVCMP1, IVCMP3

Analog voltage input for comparator B.

IVREF1, IVREF3

Reference voltage input for comparator B.

Touch sensor control

unit

CHxA0, CHxA1, CHxB,

CHxC

I/O

Control pins for electrostatic capacitive touch detection.

CH00 to CH35

Electrostatic capacitive touch detection pins.

I/O ports

P0_0 to P0_7,

P1_0 to P1_7,

P2_0 to P2_7,

P3_0 to P3_7,

P4_3 to P4_7,

P5_0 to P5_7,

P6_0 to P6_7,

P7_0 to P7_7,

P8_0 to P8_7,

P9_0 to P9_5

I/O

8-bit CMOS input/output ports.

Each port has an I/O select direction register, enabling

switching input and output for each pin.

For input ports, the presence or absence of a pull-up

resistor can be selected by a program.

All ports can be used as LED drive (high drive) ports.

Input port

P4_2

Input-only port.

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