RATOC Systems Japan 

High-performance Protocol Emulator
for Windows that emulates SPI/I2C bus protocols

Model: REX-USB61mk2

The REX-USB61mk2 is a protocol converter/adapter used to bridge the communication between a computer's USB port and devices that use the SPI (Serial Peripheral Interface) or I2C (Inter-Integrated Circuit) communication protocol.

High-performance USB connection adapter compatible with both SPI and I2C

The REX-USB61mk2 is an adapter that converts the SPI/I2C bus used in sensors and memory devices to USB and connects to a PC. It can control SPI/I2C devices from a PC, supporting development by checking device operation at the early stages, acquiring and analyzing various sensor data, and implementing it on a microcontroller. Switching between SPI/I2C and master/slave modes is done using downloadable utilities or library functions.

• Hardware and software development: Engineers use it to check the functionality of products in the initial development stages and to facilitate development by directly interfacing with devices like sensors and memory from a PC.
• Debugging and testing: It serves as a tool for debugging and analyzing data from various sensors or memory devices without needing a fully developed microcontroller system.
• Device emulation: The device can operate in both master and slave modes (for I2C; SPI is master mode only), allowing the PC to either control a peripheral device or emulate a device for a microcontroller to interact with.
• Programming/configuration: It is used for tasks such as writing firmware to EEPROMs or Flash ROMs and setting detailed parameters for various devices.
• Prototyping and evaluation: It simplifies the process of testing different components by allowing control via utility software or custom applications built with the provided API libraries.
• Data acquisition: It can acquire/analyze various sensor data at high speeds, making it suitable for applications like industrial robots or car-mounted control systems.

Pic.: RATOC REX-USB61mk2 High-performance Protocol Emulator for Windows that emulates SPI/I2C bus protocols at Semiki's warehouse

Specifications:

Host Interface: USB2.0 High-Speed, Micro-B connector
Device Interface: SPI, I2C, 8-bit DIO
Power Supply: +5V via USB bus power
Device Power Output: 1.8V, 2.5V, 3.3V, 5.0V (Max 100mA)
Voltage Input: 1.8V to 5.0V (can use external power)
Maximum Connections: Up to 4 units can be connected simultaneously
Supported OS: Windows 10, 8.1, 8, 7, Vista (32/64-bit compatible)
SPI bus specifications
Frequency (SCK): 762Hz to 50MHz
Device Mode Master/Slave (2 slave channels)
Bus Width: Single, Dual, Quad
Transfer: Size Up to 32 bits
I2C bus specifications
Frequency (SCL) 762Hz to 5MHz (presets: 100k, 400k, 1M, 3.4M, 5MHz)
Device Mode Master/Slave (2 slave channels)
Communication Mode: Standard-Mode, Fast-Mode, Fast-Mode Plus, High-Speed, Ultra Fast-Mode
Address Mode: 7-bit/10-bit

REX-USB61mk2 catalog Download

DISTRIBUTED BY:

Semiki instrumentation Co., Ltd
Email: sales@semiki.com
Office tel: +84 28 2253 3522

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