Datasheet

R8C/36C Group 1. Overview
R01DS0018EJ0110 Rev.1.10 Page 12 of 59
Nov 02, 2010
I: Input O: Output I/O: Input and output
Table 1.8 Pin Functions (2)
Item Pin Name I/O Type Description
SSU SSI I/O Data I/O pin.
SCS
I/O Chip-select signal I/O pin.
SSCK I/O Clock I/O pin.
SSO I/O Data I/O pin.
I
2
C bus
SCL I/O Clock I/O pin
SDA I/O Data I/O pin
Reference voltage
input
VREF I Reference voltage input pin to A/D converter.
A/D converter AN0 to AN11 I Analog input pins to A/D converter.
ADTRG
I AD 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_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_4,
P5_6, P5_7,
P6_0 to P6_7,
P8_0 to P8_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.
Input port P4_2 I Input-only port.