Cypress Semiconductor EZ-USB GX3 CY4701 Guide

CY4701
EZ-USB® GX3™ Reference Design Guide
Doc. No. 001-97892 Rev. **
Cypress Semiconductor
198 Champion Court
San Jose, CA 95134-1709
Phone (USA): 800.858.1810
Phone (Intnl): 408.943.2600
http://www.cypress.com

Copyrights
CY4701 EZ-USB® GX3™ Reference Design Guide Doc. No. 001-97892 Rev. ** 2
Copyrights
© Cypress Semiconductor Corporation, 2015. The information contained herein is subject to change without notice.
Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a
Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted
nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an
express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical
components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury
to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all
risk of such use and in doing so indemnifies Cypress against all charges.
Trademarks
GX3 is a trademark and EZ-USB is a registered trademark of Cypress Semiconductor Corp. All other trademarks or
registered trademarks referenced herein are property of the respective corporations.
Source Code
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected
by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international
treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use,
modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of
creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress
integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or
representation of this Source Code except as specified above is prohibited without the express written permission of
Cypress.
Disclaimer
CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described
herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein.
Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure
may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support
systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against
all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.

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Contents
Contents .................................................................................................................................................................................3
Safety Information..................................................................................................................................................................4
Regulatory Compliance...................................................................................................................................................4
General Safety Instructions .............................................................................................................................................4
ESD Protection......................................................................................................................................................4
Handling Boards....................................................................................................................................................4
1. Introduction....................................................................................................................................................................5
1.1 Kit Contents...........................................................................................................................................................5
1.2 CY4701 RDK Dongle.............................................................................................................................................5
1.3 Additional Resources.............................................................................................................................................6
1.4 Technical Support..................................................................................................................................................6
1.5 Document Conventions.........................................................................................................................................6
1.6 Abbreviations.........................................................................................................................................................6
2. Software Installation .....................................................................................................................................................7
2.1 Software Tools and Drivers ...................................................................................................................................7
2.2 Install Hardware.....................................................................................................................................................7
3. Kit Operation..................................................................................................................................................................8
3.1 USB-to-Ethernet Bridge Controller Enumeration...................................................................................................8
3.2 Testing CY4701 RDK Functionality.......................................................................................................................9
3.3 EZ-USB GX3 Parameter Configuration in Windows............................................................................................12
3.3.1 Connecting CY4701 RDK to Cypress GX3 EEPROM Programming Tool..............................................12
3.3.2 Parameter Configuration.........................................................................................................................14
4. Hardware......................................................................................................................................................................16
4.1 Board Details.......................................................................................................................................................16
4.2 Theory of Operation.............................................................................................................................................17
4.3 Functional Description.........................................................................................................................................17
4.3.1 GX3 Features .........................................................................................................................................17
4.3.2 Power Supply System.............................................................................................................................17
4.3.3 USB Connector.......................................................................................................................................18
4.3.4 Serial EEPROM......................................................................................................................................19
4.3.5 LEDs.......................................................................................................................................................19
5. Appendix A: Instructions and BOM ...........................................................................................................................20
A.1 Installing and Binding the Driver Manually...........................................................................................................20
A.2 Bill of Materials (BOM).........................................................................................................................................21
Revision History...................................................................................................................................................................23

CY4701 EZ-USB® GX3™ Reference Design Guide Doc. No. 001-97892 Rev. ** 4
Safety Information
Regulatory Compliance
The CY4701 EZ-USB® GX3™Reference Design Kit (RDK) is intended for use as a development platform for hardware or
software in a laboratory environment. The board is an open system design, which does not include a shielded enclosure.
This kit may cause interference with other electrical or electronic devices in close proximity. In a domestic environment, this
product may cause radio interference. In such cases, take adequate preventive measures. Also, do not use this board near
any medical equipment or RF devices.
Attaching additional wiring to this product or modifying the product operation from the factory default may affect its
performance and cause interference with other apparatus in the immediate vicinity. If such interference is detected, suitable
mitigating measures must be taken.
The CY4701 RDK contains electrostatic discharge (ESD) sensitive devices. Electrostatic charges
readily accumulate on the human body and any equipment and can discharge without detection.
Permanent damage may occur to devices subjected to high-energy discharges. Cypress recommends
proper ESD precautions to avoid performance degradation or loss of functionality. Store unused
CY4701 reference design boards in the protective shipping package.
End-of-Life/Product Recycling
The end-of-life cycle for this kit is five years from the date of manufacture mentioned on the back of the
box. Contact the nearest recycler to discard the kit.
General Safety Instructions
ESD Protection
ESD can damage boards and associated components. Cypress recommends that you perform procedures only at an ESD
workstation. If an ESD workstation is not available, use the appropriate ESD protection by wearing an antistatic wrist strap
attached to the chassis ground (any unpainted metal surface) on the board when handling parts.
Handling Boards
CY4701 boards are sensitive to ESD. Hold the board only by its edges. After removing the board from its box, place it on a
grounded, static-free surface. Use a conductive foam pad if available. Do not slide the board over any surface.

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1. Introduction
Thank you for your interest in the CY4701 EZ-USB®GX3™ Reference Design Kit (RDK). This RDK is an easy-to use kit
that showcases the unique features of CYUSB3610 (GX3), Cypress's SuperSpeed USB to Gigabit Ethernet Bridge
Controller (GX3).
Cypress EZ-USB®GX3™ is a USB 3.0 to Gigabit Ethernet Bridge Controller designed to provide seamless Ethernet
connectivity to the host computers through a USB interface. The GX3 enumerates as a standard network adapter on the
PC, enabling existing software applications to be reused, and accelerates time to market.
The CY4701 GX3 Reference Design Kit enables the customers to evaluate the GX3 device. This user guide describes the
steps to install the drivers required by the RDK and to operate the RDK dongle provided with the kit. The guide also
documents the two software utilities and explains the use of each. This document also explains the steps in detail on how to
measure the Gigabit Ethernet throughput using the RDK dongle provided with this kit.
1.1 Kit Contents
The CY4701 GX3 Reference Design Kit contains the following:
GX3 reference design dongle
Quick start guide
Visit the kit web page (www.cypress.com/go/CY4701) for more information. Inspect the contents of the kit. If any
parts are missing contact your nearest Cypress Sales office for further assistance.
1.2 CY4701 RDK Dongle
CY4701 RDK is a plug-and-play dongle requiring no other hardware for its operation except an RJ45 cable to connect to the
network.
Figure 1-1. GX3 RDK Dongle

Introduction
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1.3 Additional Resources
Visit the EZ-USB GX3 web page for additional learning resources such as datasheets, application notes and knowledge
base articles.
1.4 Technical Support
For assistance, go to our support web page or contact customer support at [phone] Ext. 8 (in the USA), or +1
[phone] Ext. 8 (International).
1.5 Document Conventions
Convention
Usage
Courier New
Displays file locations, user-entered text, and source code:
C:\ ...cd\gx3\
Italics
Displays file names and reference documentation:
For example, CY4701.cyusb
[Bracketed, Bold]
Displays keyboard commands in procedures:
[Enter] or [Ctrl] [C]
File > Open
Represents menu paths:
File > Open > New Project
Bold
Displays commands, menu paths, and icon names in procedures:
Click the File icon and then click Open.
Times New Roman
Displays an equation:
2 + 2 = 4
Text in gray boxes
Describes cautions or unique functionality of the product
1.6 Abbreviations
The following table lists the abbreviations used in this kit guide.
Abbreviation
Definition
EEE
Energy Efficient Ethernet
Gbps
Gigabits per second
Mbps
Megabits per second
PID
Product ID
RDK
Reference Design Kit
USB
Universal Serial Bus
VID
Vendor ID

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2. Software Installation
2.1 Software Tools and Drivers
The following software tools and drivers are available for GX3 based solution development:
Drivers for Windows XP; Windows Vista; Windows 7, 8, 8.1 and 10 (32-bit and 64-bit systems)
Drivers for Mac OS
Drivers for Linux
Drivers for Chrome OS
GX3 EEPROM Programming Tool
GX3 Production Test Tool
These software tools and drivers are available at www.cypress.com/gx3software.
2.2 Install Hardware
This kit does not require any additional hardware installation.

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3. Kit Operation
The CY4701 RDK helps you evaluate the EZ-USB GX3 SuperSpeed USB to Gigabit Ethernet Bridge Controller. The
CY4701 RDK dongle is designed to work in USB bus-powered mode. Figure 3-1 shows the dongle image with references to
the onboard components. The RDK is also available with a Type-C USB plug as shown.
Figure 3-1. CY4701 RDK
3.1 USB-to-Ethernet Bridge Controller Enumeration
Connect the CY4701 RDK dongle to the USB port of the PC. The board enumerates as a network adapter in the Device
Manager.
Follow these steps for device enumeration:
1. Connect the CY4701 RDK dongle to the USB port of the PC.
2. Notice that the PC detects the board and the software driver is automatically downloaded from the Microsoft website
and bound to the USB device.
Note: If the driver installation is unsuccessful, download the driver per your operating system from
www.cypress.com/gx3software. The driver folder structure is shown in Figure 3-2.

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For more information, refer to A.1 Installing and Binding the Driver Manually.
Figure 3-2. Folder for cyusb3610 Driver
Note: If a "Welcome to the Found New Hardware Wizard" message appears, select the Yes, this time only option and
click Next to continue the installation.
3. When the software drivers are successfully bound, the board enumeration is complete. The board appears as a
network adapter in the Windows Device Manager.To launch the Device Manager in Windows 7, go to Start >
Control Panel > Device Manager, as shown in Figure 3-3.
Figure 3-3. CY4701 RDK Enumeration as a Network Adapter in Device Manager
3.2 Testing CY4701 RDK Functionality
You can perform the EZ-USB GX3 functionality and performance tests using a software PC tool, iperf.exe.Iperf is an open
source tool to measure maximum TCP bandwidth, allowing you to tune various parameters and UDP characteristics. Iperf
can be downloaded from https://iperf.fr.
Follow these steps to test the dongle’s functionality using the Iperf test tool:
1. Connect the CY4701 RDK dongle to the USB port of the PC. This PC will act as a client PC.
2. Connect an Ethernet cable to the RJ45 connector of the CY4701 RDK to the Ethernet port of the other PC. This PC will
act as server PC.
3. On the server PC, go to Computer > Network > Network and Sharing Center.

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4. Click on the desired local area connection, as shown in Figure 3-4.
Figure 3-4. Network and Sharing Center
5. After the dialog box appears, click on Properties and double-click on Internet Protocol Version 4, as shown in Figure
3-5.
Figure 3-5. Local Area Connection Properties

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6. Set the IP address as shown in Figure 3-6 and click OK.
Figure 3-6. Setting the IP Address Manually
7. Repeat steps 4 to 6 on the client PC to configure the IP address. Note that the IP address for the client PC should be
different from that of the server PC, but the domain and subnet mask need to be the same. For example, if the IP
address of the server PC is set as 192.168.0.1, then the IP address of the client PC should be 192.168.0.xxx, where
xxx can be any number between 2 and 254.
8. Open the command prompt on the server PC and browse to the path where iperf.exe is stored.
9. Run the command iperf.exe –s,as shown in Figure 3-7.
Figure 3-7. Running Iperf on Server PC

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10. Repeat step 8 on the client PC and run iperf.exe –c <server IP address> –i 5 –t 100 –l 10m,as shown in Figure 3-8.
Figure 3-8. Running Iperf on Client PC
The throughput will be displayed on the client PC every 5 seconds, as shown in Figure 3-8. The test will run for 100
seconds and then display the average Ethernet bandwidth.
3.3 EZ-USB GX3 Parameter Configuration in Windows
The EZ-USB GX3 on the CY4701 RDK can be configured for parameters such as USB VID, PID, MAC address, strings,
and others into the external EEPROM by using the Cypress GX3 EEPROM Programming Tool. The GX3 comes with
preconfigured parameters in its internal memory. However, you have the option to choose your own parameters and store
them in the external EEPROM.
To configure the parameters, you need to bind the GX3 test driver to the CY4701 RDK before using the GX3 EEPROM
Programming Tool. The following sections provide detailed descriptions to bind the test driver manually and configure the
parameters by using the Programming Tool.
3.3.1 Connecting CY4701 RDK to Cypress GX3 EEPROM Programming Tool
Follow these steps to connect the device using the Cypress GX3 EEPROM Programming Tool:
1. Open Device Manager and right-click on Cypress GX3 SuperSpeed to Gigabit Ethernet Bridge Controller.

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2. Click on Update Driver Software and select Browse my computer for driver software, as shown in Figure 3-9.
Figure 3-9. Update Driver Software
3. Select Let me pick from a list of device drivers on my computer, as shown in Figure 3-10.
Figure 3-10. Manually Select the Driver
4. Click on Have Disk and browse to the location <Install Directory>\GX3 EEPROM Programming
Tool\<driver folder>. Then select a suitable driver based on your OS.

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5. Click Next and wait until the driver is successfully installed. The previous steps will bind the CYUSB3610 test driver to
the GX3 device. The device will appear as Cypress GX3 SuperSpeed to Gigabit Ethernet Bridge Controller (Test
Driver) in Device Manager.
6. Run the GX3 EEPROM Programming Tool from Start >All Programs >Cypress >CY4701 RDK >GX3 EEPROM
Programming Tool.
For a detailed description of the Programming Tool, refer to the GX3 EEPROM Programming User Guide at
www.cypress.com/gx3.
Figure 3-11 shows the startup screen of the Cypress GX3 EEPROM Programming Tool.
Figure 3-11. EEPROM Programming Tool Startup Screen
3.3.2 Parameter Configuration
You can configure the following parameters using the Cypress GX3 EEPROM Programming Tool:
Power supply system
Ethernet MAC Address
USB VID
USB PID
USB Manufacturer string
USB Product string
USB Serial Number
LED settings
To change the parameters, follow these steps:

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1. Enter the parameter values and click the Preview button.
The data window will display the hex values that are ready to be programmed in an EEPROM.
2. Click the Program button to program the contents in the EEPROM.
If the programming is successful, a green ring will appear in the result window, as shown in Figure 3-12.
Figure 3-12. EEPROM Programming Tool showing programming successful

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4. Hardware
4.1 Board Details
The CY4701 RDK dongle (Figure 4-1) consists of the following components:
CYUSB3610 GX3 SuperSpeed USB to Gigabit Ethernet Bridge Controller
Power supply system
USB Type-A connector
RJ45 connector
Serial EEPROM
LEDs
Figure 4-1. CY4701 RDK Dongle

Hardware
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4.2 Theory of Operation
This section describes the CY4701 RDK board block diagram shown in Figure 4-2.
Figure 4-2. Hardware Block Diagram
USB 3.0
Plug
EZ-USB
GX3
(CYUSB3610)
Regulator
RJ45
connector
with
Magnetics
Serial
EEPROM
Activity LEDs
D+/-, SSTX+/-, SSRX+/- MDI+/-
3.3 V
1.2 V
VBUS
1V2 3V3 SCK
SDA
GND
VBUS
The CY4701 RDK dongle features the CYUSB3610 GX3 SuperSpeed USB to Gigabit Ethernet Bridge Controller, which
does not require any firmware development. You can modify the USB and Ethernet parameters of the controller using the
Cypress GX3 EEPROM Programming Tool.
The CY4701 RDK dongle is powered from the USB. This input voltage is regulated with an LDO regulator to 3.3 V and
1.8 V connected to the GX3 bridge controller. You can connect to a network using an Ethernet cable to the RJ45 connector
of the CY4701 RDK.
The CY4701 RDK includes a serial EEPROM connected to the GX3 bridge controller. The configurable parameter values
are stored in EEPROM so that while booting, the GX3 loads the parameter values from the EEPROM. If the EEPROM is
blank or has invalid data, the GX3 loads the default parameters stored in its internal memory.
The CY4701 RDK also includes a USB 3.0 activity LED and an Ethernet activity LED. Refer to the LEDs section for an
explanation of their functions.
4.3 Functional Description
The GX3 RDK enumerates as a standard network adapter on the PC, enabling existing software applications to be reused,
and accelerates time to market. For more information, refer to the GX3 web page and the GX3 datasheet.
4.3.1 GX3 Features
USB 3.0 certified, SuperSpeed (5 Gbps); also supports USB High Speed and Full Speed
Gigabit Ethernet PHY
Supports Energy Efficient Ethernet (EEE)
Supports WLAN (Wake on LAN)
Supports throughput up to 950 Mbps
Supports Jumbo frames up to 4K for more throughput
4.3.2 Power Supply System
The CY4701 RDK dongle is designed to operate in the USB bus-powered mode. The onboard voltage regulator provides
the 3.3 V and 1.2 V required for the bridge controller and the serial EEPROM.

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4.3.3 USB Connector
A USB standard-A connector is used on the board, as shown in Figure 4-3. The connector’s shield is connected to the
ground. Six ESD diodes (D1–D5 and D7) are placed on the USB signal pins to reduce ESD noise. D6, inductor (L16), and
capacitors (C50, C48) are placed on the VBUS pin to reduce the noise from power supply lines.
Figure 4-3. USB Type-A Connector Schematic
Figure 4-4 is the reference schematic for using a Type-C USB connector with GX3.
Figure 4-4. USB Type-C Connector Schematic

Hardware
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4.3.4 Serial EEPROM
A serial EEPROM (Figure 4-5) is connected to the GX3 via a serial interface.GX3 reads the EEPROM data at boot time.
Figure 4-5. EEPROM Schematic
4.3.5 LEDs
The CY4701 RDK includes two LEDs (Figure 4-6):
LED1: This LED will turn on to indicate that the RDK is connected to the USB 3.0 port. During active data transfers, it
will blink, indicating activity over USB 3.0 lines.
LED2: This LED is the Ethernet activity LED. It will blink to indicate activity on the Ethernet port.
Figure 4-6. LED Schematic

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5. Appendix A: Instructions and BOM
A.1 Installing and Binding the Driver Manually
This section explains how to install and bind the GX3 drivers manually if automatic installation has failed. Follow these steps
to manually install the drivers.
1. Download the driver from www.cypress.com/gx3software per the installed OS on your system.
2. Connect the GX3 RDK dongle to the USB port of the PC.
3. Open Device Manager and right-click on GX3.
4. Click Update Driver Software and select Browse my computer for driver software, as shown in Figure A-1.
Figure A-1. Update Driver Software
5. Select Let me pick from a list of device drivers on my computer, as shown in Figure A-2.