Datasheet
R01DS0060EJ0160 Rev.1.60 Page 12 of 154
May 19, 2014
RX630 Group 1. Overview
1.4 Pin Functions
Table 1.4 lists the pin functions.
Table 1.4 Pin Functions (1/5)
Classifications Pin Name I/O Description
Power supply VCC Input Power supply pin. Connect it to the system power supply. Connect
this pin to VSS via a 0.1-µF capacitor. The capacitor should be
placed close to the pin
VCL Input Connect this pin to VSS via a 0.1-F capacitor. The capacitor
should be placed close to the pin
VSS Input Ground pin. Connect it to the system power supply (0 V)
VBATT Input Backup power pin. When the battery backup function is not to be
used, connect it to the VCC pin.
Clock XTAL Output Pins for a crystal resonator. An external clock signal can be input
through the EXTAL pin
EXTAL Input
BCLK Output Outputs the external bus clock for external devices
XCOUT Output Input/output pins for the sub-clock oscillator circuit. Connect a
crystal resonator between XCOUT and XCIN
XCIN Input
Operating mode control MD Input Pin for setting the operating mode. The signal levels on these pins
must not be changed during operation
System control RES# Input Reset signal input pin. This LSI enters the reset state when this
signal goes low
EMLE Input Input pin for the on-chip emulator enable signal. When the on-chip
emulator is used, this pin should be driven high. When not used, it
should be driven low
BSCANP Input Boundary scan enable pin. Boundary scan is enabled when this pin
goes high. When not used, it should be driven low
On-chip emulator FINEC Input Fine interface clock pin
FINED I/O Fine interface pin
TRST# Input On-chip emulator or boundary scan pins. When the EMLE pin is
driven high, these pins are dedicated for the on-chip emulator
TMS Input
TDI Input
TCK Input
TDO Output
TRCLK Output This pin outputs the clock for synchronization with the trace data
TRSYNC Output This pin indicates that output from the TRDATA0 to TRDATA3 pins
is valid
TRDATA0 to TRDATA3 Output These pins output the trace information
Address bus A0 to A23 Output Output pins for the address
Data bus D0 to D31 I/O Input and output pins for the bidirectional data bus
Multiplexed bus A0/D0 to A15/D15 I/O Address/data multiplexed bus