RX64M Datasheet, PDF (18/67 Pages) Renesas Technology Corp – MCUs

Under development ^{Preliminary document}
Specifications in this document are tentative and subject to change.
RX64M Group
1. Overview
1.4 Pin Functions
Table 1.4 lists the pin functions.
Table 1.4
Pin Functions (1/8)
Classifications
Pin Name
Digital power supply
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
FINEC
FINED
TRST#
TMS
TDI
TCK
TDO
TRCLK
TRSYNC
TRDATA0 to TRDATA3
A0 to A23
D0 to D31
A0/D0 to A15/D15
I/O
Description
Input
Input
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.
Input Ground pin. Connect it to the system power supply (0 V).
Input Backup power pin
Output Pins for a crystal resonator. An external clock signal can be
Input ^{input through the EXTAL pin.}
Output Outputs the external bus clock for external devices.
Output Outputs the SDRAM-dedicated clock.
Output Input/output pins for the sub clock oscillator. Connect a crystal
Input ^{resonator between XCOUT and XCIN.}
Input
Reference clock input pin for the clock frequency accuracy
measurement circuit
Input
Pins for setting the operating mode. The signal levels on these
pins must not be changed during operation.
Input USB boot mode or user boot mode enable pin
Input
Selects the power supply method in USB boot mode.
The low level selects self-power mode and the high level selects
bus power mode.
Input
Reset signal input pin. This LSI enters the reset state when this
signal goes low.
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.
Input
Boundary scan enable pin. Boundary scan is enabled when this
pin goes high. When not used, it should be driven low.
Input Fine interface clock pin
I/O
Fine interface pin
Input
Input
On-chip emulator or boundary scan pins. When the EMLE pin is
driven high, these pins are dedicated for the on-chip emulator.
Input
Input
Output
Output This pin outputs the clock for synchronization with the trace
data.
Output This pin indicates that output from the TRDATA0 to TRDATA3
pins is valid.
Output These pins output the trace information.
Output Output pins for the address
I/O
Input and output pins for the bidirectional data bus
I/O
Address/data multiplexed bus
R01DS0173EJ0090 Rev.0.90
Feb 28, 2014
Page 18 of 67