Datasheet
RX610 Group 1. Overview
R01DS0097EJ0120 Rev.1.20 Page 22 of 84
Feb 20, 2013
1.5 Pin Functions
Table 1.5 lists the pin functions.
Table 1.5 Pin Functions
Classifications
Pin Name
I/O
Description
Power supply
VCC
Input
Power supply pin. Connect it to the system power supply.
VCL Input Connect this pin to VSS via a 0.1-ยตF capacitor. The capacitor
should be placed close to the pin.
VSS
Input
Ground pin. Connect it to the system power supply (0 V).
PLLVCC Input Power supply pin for the PLL circuit. Connect it to the system
power supply.
PLLVSS
Input
Ground pin for the PLL circuit
Clock
XTAL
Input
Pins for a crystal resonator. An external clock signal can be
input through the EXTAL pin.
EXTAL
Input
BCLK
Output
Outputs the system clock for external devices.
Operating mode control MD0, MD1, MDE Input Pins 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 to enable on-chip emulator signal. When the on-chip
emulator is used, this pin should be driven high. When not
used, it should be driven low.
BSCANP Input Input pin to enable boundary-scan signal. When this pin is
driven high, the boundary scan is enabled. When the boundary
scan is not used, this pin should be driven low.
On-chip emulator
TRST#
Input
On-chip emulator 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*
1
Output
Output pins for the address
Data bus
D0 to D15
I/O
Input and output pins for the bidirectional data bus