RX64M_15 Datasheet, PDF (18/230 Pages) Renesas Technology Corp – Renesas MCUs

RX64M Group
1.4 Pin Functions
Table 1.4 lists the pin functions.
Table 1.4
Pin Functions (1/8)
Classifications
Digital power supply
Pin Name
VCC
VCL
VSS
VBATT
Clock
XTAL
EXTAL
BCLK
SDCLK
XCOUT
XCIN
Clock frequency accuracy CACREF
measurement
Operating mode control MD
UB
UPSEL
System control
RES#
EMLE
On-chip emulator
Address bus
Data bus
Multiplexed bus
BSCANP
FINED
TRST#
TMS
TDI
TCK
TDO
TRCLK
TRSYNC
TRDATA0 to TRDATA3
A0 to A23
D0 to D31
A0/D0 to A15/D15
1. Overview
I/O
Input
Input
Input
Input
Output
Input
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
I/O
Input
Input
Input
Input
Output
Output
Output
Output
Output
I/O
I/O
Description
Power supply pin. Connect this pin to the system power supply.
Connect the pin to VSS via a 0.1-μF multilayer ceramic
capacitor. The capacitor should be placed close to the pin.
Connect this pin to VSS via a 0.1-μF multilayer ceramic
capacitor. The capacitor should be placed close to the pin.
Ground pin. Connect it to the system power supply (0 V).
Backup power pin
Pins for a crystal resonator. An external clock signal can be
input through the EXTAL pin.
Outputs the external bus clock for external devices.
Outputs the SDRAM-dedicated clock.
Input/output pins for the sub clock oscillator. Connect a crystal
resonator between XCOUT and XCIN.
Reference clock input pin for the clock frequency accuracy
measurement circuit
Pins for setting the operating mode. The signal levels on these
pins must not be changed during operation.
USB boot mode or user boot mode enable pin
Selects the power supply method in USB boot mode.
The low level selects self-power mode and the high level selects
bus power mode.
Reset signal input pin. This LSI enters the reset state when this
signal goes low.
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.
Boundary scan enable pin. Boundary scan is enabled when this
pin goes high. When not used, it should be driven low.
Fine interface pin
On-chip emulator or boundary scan pins. When the EMLE pin is
driven high, these pins are dedicated for the on-chip emulator.
This pin outputs the clock for synchronization with the trace
data.
This pin indicates that output from the TRDATA0 to TRDATA3
pins is valid.
These pins output the trace information.
Output pins for the address
Input and output pins for the bidirectional data bus
Address/data multiplexed bus
R01DS0173EJ0100 Rev.1.00
Jul 31, 2014
Page 18 of 230