R01DS0012EJ0110_15 Datasheet, PDF (18/70 Pages) Renesas Technology Corp – RENESAS MCU

R8C/34W Group, R8C/34X Group, R8C/34Y Group, R8C/34Z Group
1. Overview
1.5 Pin Functions
Tables 1.15 and 1.16 list Pin Functions.
Table 1.15 Pin Functions (1)
Item
Pin Name
Power supply input VCC, VSS
Analog power
supply input
AVCC, AVSS
Reset input
RESET
MODE
MODE
XIN clock input XIN
XIN clock output XOUT
I/O Type
Description
− Apply 2.7 V to 5.5 V to the VCC pin. Apply 0 V to the VSS pin.
− Power supply for the A/D converter.
Connect a capacitor between AVCC and AVSS.
I Input “L” on this pin resets the MCU.
I Connect this pin to VCC via a resistor.
I These pins are provided for XIN clock generation circuit I/O.
Connect a ceramic resonator or a crystal oscillator between
I/O
the XIN and XOUT pins ⁽¹⁾. To use an external clock, input it
to the XOUT pin and leave the XIN pin open.
INT interrupt input
Key input interrupt
Timer RA
INT0 to INT4
KI0 to KI3
TRAIO
Timer RB
Timer RC
TRAO
TRBO
TRCCLK
TRCTRG
TRCIOA, TRCIOB,
TRCIOC, TRCIOD
Timer RD
Timer RE
Serial interface
TRDIOA0, TRDIOA1,
TRDIOB0, TRDIOB1,
TRDIOC0, TRDIOC1,
TRDIOD0, TRDIOD1
TRDCLK
TREO
CLK0, CLK2
RXD0, RXD2
TXD0, TXD2
CTS2
RTS2
SCL2
SDA2
SSU
SSI
SCS
SSCK
SSO
I INT interrupt input pins.
I Key input interrupt input pins
I/O Timer RA I/O pin
O Timer RA output pin
O Timer RB output pin
I External clock input pin
I External trigger input pin
I/O Timer RC I/O pins
I/O Timer RD I/O pins
I External clock input pin
O Divided clock output pin
I/O Transfer clock I/O pins
I Serial data input pins
O Serial data output pins
I Transmission control input pin
O Reception control output pin
I/O _I²_{C mode clock I/O pin}
I/O _I²_{C mode data I/O pin}
I/O Data I/O pin
I/O Chip-select signal I/O pin
I/O Clock I/O pin
I/O Data I/O pin
I: Input
O: Output
I/O: Input and output
Note:
1. Refer to the oscillator manufacturer for oscillation characteristics.
R01DS0012EJ0110 Rev.1.10
Jan 31, 2013
Page 18 of 67