Here is the spec information of GR-SAKURA and GR-SAKURA-FULL.
|On-board MCU||32-bit high performance CPU
（ R5F563NBDDFP ） RX63N 100-pin
▶ Operating frequency: 96 MHz (single precision FPU, on-chip multiplication/division)
▶ Flash ROM: 1M Bytes, RAM：128K bytes,
▶ Data flash：32K bytes
▶ Communication features: USB (host/function), Ether-MAC, I2C, SPI, CAN, IEBus
▶ Timers 16-bit (MTU, TPU, CMT), 8-bit TMR, WDT, independent WDT, PPG
▶ 12 / 10-bit ADC, temperature sensor, data transfer (DMAC, DTC)
|Board features||▶ USB function pins (mini-B）: Download by USB mass storage (write)
▶ EtherNet (RJ45) pins : LAN such as Web server and remote download available
▶ USB host pins (A)： applicable to Android-ADB-ADK
▶ MicroSD jacket: possible to share data with PC
▶ XBee ready pins: mount XBee module for wireless remote download
▶ Additional service pins for advanced timer input/outputs
▶ JTAG pins: E1 emulator debugging is possible
|Initial firmware||Flash write downloader firmware based on USB mass storage|
|Power supply||5V (USB bus-powered operation or AC adapter) (RX63N operates in 3.3V)|
|(1) USB function connector||– Connect to PC and Android phone (limited to the USB mass storage compatible devices)
– USB bus-powered
– Transfer rate 12Mbit / sec (bulk, interrupt, and control).
Transfer user program in the RX63N built-in Flash memory
|(2) DC power jack (5 V)||Use when the USB bus power is not enough
(RX63N operates at 3.3V, which voltage generated by the on-board regulator IC)
|(3) USB host connector (type A)||Solder the bundled connector on the back side of mini USB connector when needed. You can use it for the Android ADK.
Please note that USB host and USB function can not be used simultaneously.
|(4) EtherNet (RJ45) connector||100 / 10 Mbps, internal pulse transformer|
|(5) JTAG connector||JTAG debugger (ready for Renesas-E1)|
|(6) Arduino-compatible pins||Pin and footprint compatible with commonly available Arduino shields. (Please note 3.3V and 5V tolerant pins)|
|(7) Expansion pin||In addition to pins in (6), the board offers auxiliary pins covering most of valid pins on the RX63N 100-pin package .|
|(8) XBee ready pattern||Xbee module can be mounted on this spot, which enables the board to communicate via Zigbee and Wi-Fi.|
|(9) Micro SD card slot||Access in SPI mode|
|(10) Switch||(Red or Brown) SW1 — reset
(Blue) SW2 – available for user
(Slide) SW3 – change the RX63N operation mode
|(11) LED||4 pieces
Use freely in the user program.