Datasheet

R8C/3JC Group 1. Overview
REJ03B0302-0100 Rev.1.00 Page 10 of 54
May 25, 2010
I: Input O: Output I/O: Input and output
Table 1.7 Pin Functions (2)
Item Pin Name I/O Type Description
Reference voltage
input
VREF I Reference voltage input pin to A/D converter and D/A
converter
A/D converter AN0 to AN1, AN3 to AN6,
AN8 to AN11
I Analog input pins to A/D converter
ADTRG
I A/D external trigger input pin
D/A converter DA0, DA1 O D/A converter output pins
Comparator B IVCMP1, IVCMP3 I Comparator B analog voltage input pins
IVREF1, IVREF3 I Comparator B reference voltage input pins
I/O port P0_1 to P0_4, P0_6, P0_7,
P1_0 to P1_7,
P2_0 to P2_5,
P3_1, P3_3 to P3_5, P3_7,
P4_3 to P4_7,
P6_6
I/O CMOS I/O ports. Each port has an I/O select direction
register, allowing each pin in the port to be directed for
input or output individually.
Any port set to input can be set to use a pull-up resistor
or not by a program.
All ports can be used as LED drive ports.
Input port P4_2 I Input-only port