Preliminary document
Specifications in this document are tentative and subject to change.
Under development
R8C/34W Group, R8C/34X Group, R8C/34Y Group, R8C/34Z Group
1. Overview
Table 1.16
Pin Functions (2)
Item
Pin Name
CRX0 (1)
I/O Type
Description
CAN module
I
O
I
CAN data input pin
CAN data output pin
CTX0 (1)
Reference voltage VREF
input
Reference voltage input pin to A/D converter
A/D converter
AN0 to AN11
I
I
Analog input pins to A/D converter
AD external trigger input pin
ADTRG
I/O port
P0_0 to P0_7,
P1_0 to P1_7,
P2_0 to P2_7,
P3_0 to P3_1,
P3_3 to P3_5, P3_7,
P4_3 to P4_7,
P6_0 to P6_7
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.
Input port
P4_2
I
I/O: Input and output
Input-only ports
I: Input
Note:
O: Output
1. Only in the R8C/34W Group and R8C/34X Group.
REJ03B0312-0010 Rev.0.10
Apr 09, 2010
Page 19 of 67
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