SMSC EVB-USB82640 User Manual

EVB-USB82640 Evaluation Board Revision A

User Manual

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SMSC EVB-USB82640 Revision 1.0 (11-20-09)

USER MANUAL

1 Overview

The SMSC USB82640 Evaluation Board Revision A contains an Ultra Fast USB 2.0 Multi-Format Flash
Media Controller and a USB Hub Combo. The USB82640 Evaluation Board (EVB-USB82640)
demonstrates a standalone application platform for developers of the following applications: Flash
Media Card Reader/Writer, printers, desktop and mobile PCs, consumer A/V, and flat panel displays.

Evaluation Board User Manual

The USB82640 is compatible with the following:

— Microsoft Vista
— Windows® XP
— Windows ME
— Windows 2000 SP4
— Apple
— Linux® Mass Storage Class Drivers

1.1 Features

 48-pin QFN (RoHS compliant) package.

 Supports these Media Types:

— Secure Digital (SD™)
— Memory Stick® (MS) 4-bit/8-bit interfaces
— Memory Stick PRO™
— Memory Stick PRO-HG™
— MultiMediaCard™ (MMC) 4-bit/8-bit interfaces

 Two USB 2.0 downstream hub ports with individual port power and over-current sense.

 Supports external configuration

— External SPI flash for USB downloadable firmware.
— External I

 Low cost 4-layer space saving design

 Operates from a single voltage (+5.0 VDC, regulated) 'wall wart' external power supply.

 Internal FET power switch for all media types.

 Multiple LED indicators

— Activity LED indicator
— Card power LED indicator
— Optional +3.3 VDC power LED indicator
— Port power LED

 Test header for firmware development and debug.

 Single crystal clock source

 Single onboard +3.3 VDC regulator.

®

®

OS X

2

C EEPROM for configuration options.

1.2 General Description

The EVB-USB82640 is a demonstration and evaluation platform featuring the USB82640 Ultra Fast USB 2.0 Multi­Format Flash Media Controller and the USB Hub Combo on a 4-layer RoHS compliant printed circuit board. It is
designed to support internal default settings and either an external I
flash for external firmware.

An 8-Mbit SPI flash device is populated on the evaluation board to provide firmware updates via USB by using the
SMSC provided USBDM utility.

Default configuration can be changed by adding an EEPROM into the provided footprint. However, the SPI flash
device has to first be removed to avoid signaling conflicts. Figure 1.1, "Top and Bottom Level Silk Screen and Copper

Layers" shows the top and bottom level silk screen and copper layer.

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2

C EEPROM for customized functionality or SPI

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Figure 1.1 Top and Bottom Level Silk Screen and Copper Layers

SMSC USB82640 3 Revision 1.0 (11-20-09)

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1.3 Functional Block Diagram

The USB82640 consists of the blocks shown in the diagram below and described in the following
sections.

Evaluation Board User Manual

USB
Upstream Port 0

Ext. 5 V Supply

USB82640

(48-Pin)

On USB Port 1

Figure 1.2 Functional Block Diagram

Two External Memory Options:

• EEPROM Configuration

• SPI External Firmware

MMC to 4.0,
SD,
MS to Pro-HG

Downstream Port 2

Downstream Port 3

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2 Getting Started

The EVB-USB82640 is configured by internal default registers. In this configuration it operates as a
USB 2.0 combo device with a three port USB Hub (two external ports) and a Flash Media Controller
with SMSC standard VID/PID/DID settings.

2.1 Configuration

The EVB-USB82640 is designed for flexible configuration solutions. It demonstrates functionality with
default internal register settings, USB host downloadable configuration EEPROM, or USB host
downloadable external firmware to a SPI flash.

2.1.1 Configuration Source - Internal default

When the EVB-USB82640 does not detect an EEPROM or a valid SPI flash image upon power-up,
the EVB-USB82640 uses internal default register settings; it sets the Vendor ID, Product ID, Language
ID, and Device ID, and a few other choices from internal ROM code.

2.1.2 Configuration Source - External EEPROM

Upon power-up the EVB-USB82640 looks for an attached EEPROM on its I2C interface. The EVB­USB82640 provides a footprint where an external EEPROM (embedded in a DFN8 package of type
24C04) can be soldered to customize the Media Controller’s settings. The EEPROM contains 512
bytes of user customizable settings. Among the settings are Vendor ID, Product ID, and Device ID
numbers. For details on the fields please see the USB82640 Software Release notes. To use the
EEPROM the SPI flash chip U9 must first be removed.

2.1.3 Configuration Source - External SPI Flash

The installed SPI flash is initially blank. In this scenario the internal firmware will execute. External
firmware updates can be downloaded via USB using the SMSC utility USBDM to the SPI flash. After
downloading the EVB-USB82640 will execute out of the SPI flash.

2.1.4 Power Source - Self/Bus Powered

The EVB-USB82640 supports both self- and bus-powered operation. By default the EVB-USB82640
is populated for bus-powered operation. Refer to the table below for resistor population options to
change the power source.

Table 2.1 Population Options for Self- or Bus-Powered Operation

POWER SOURCE R63

Bus-Powered Populate

Self-Powered (Default) Do not Populate

2.1.5 Configuration Source - USB Upstream

The EEPROM supporting the USB82640 is configured via a USB cable connected to the upstream
connector with a SMSC configuration tool named USBDM, see USB82640 Software Release Notes for
details. USBDM allows for modification of Vendor ID, Product ID, Language ID, Device ID, and
configuration settings see Figure 2.1, "USBDM Configuration Interface".

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Figure 2.1 USBDM Configuration Interface

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Table 2.2 Customer Revision History

REVISION LEVEL & DATE SECTION/FIGURE/ENTRY CORRECTION

Rev. 1.0

(11-20-09)

Initial release

SMSC USB82640 7 Revision 1.0 (11-20-09)

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Further Information

For more information on SMSC automotive products, including integrated circuits, software, and

®

MOST
information is available at: http://www.smsc-ais.com/offices.

SMSC Europe GmbH

Bannwaldallee 48
D-76185 Karlsruhe
Germany

SMSC

80 Arkay Drive
Hauppauge, New York 11788
USA

development tools and modules, visit our web site: http://www.smsc-ais.com. Direct contact

Evaluation Board User Manual

Technical Support

Contact information for technical support is available at: http://www.smsc-ais.com/contact

.

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