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SMSC USB3803 EVB USER MANUAL Revision 1.0 (12-07-12)
Copyright © 2012 SMSC or its subsidiaries. All rights reserved.
Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information
sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed
for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office
to obtain the latest specifications before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor
devices any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms
and conditions of the most recently dated version of SMSC's standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement").
The product may contain design defects or errors known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly
sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product
failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further
testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be
obtained by visiting SMSC’s website at http://www.smsc.com. SMSC is a registered trademark of Standard Microsystems Corporation (“SMSC”). Product names and
company names are the trademarks of their respective holders.
The Microchip name and logo, and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.
SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WARRANTIES
ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT,
SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE
FORM OF ACTION, WHETHER BASED ON CONTRACT; TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR
OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
USB3803 WLCSP-EVB Evaluation Board User Manual
USB3803 WLCSP-EVB Evaluation Board User Manual
SMSC USB3803 EVB 2 Revision 1.0 (12-07-12)
USER MANUAL
1 Introduction
This user manual is for the USB3803 Evaluation board. This board can be used to test and evaluate
the functionality of the USB3803 and is ideal for early system integration and software development.
The USB3803 EVB provides access to the USB upstream and downstream ports, as well as the I
2C
communication pins.
SMSC has evaluation software th 3 EVB connected to a Total Phaseat can be used with the USB380
Aardvark adaptor. This software allows the user to configure the USB3803 in different ways before
enumeration and access select status registers during enumeration. The software can be used to
prototype microprocessor software, evaluate the different configurations, and test how the desired
configuration fits into the entire system.
2 Operation
2.1 Contents of the Kit
The USB3803 EVB includes the basic equipment necessary to evaluate the USB3803. The items
included in the kit are:
1. USB3803 EVB
2. 5V DC Power Supply
3. USB A to Mini-B cable
4. Documentation and Software CD
The kit does not include any downstream USB devices, I
2C master hardware, or other components
for board customization.
2.2 Initial Configuration
The USB3803 EVB default configuration configures it to operate as a stand alone hub. To begin, plug
the evaluation board into the 5V power supply. After the board is powered up, plug the upstream port
into a standard PC host. The USB3803 EVB will enumerate as a Generic USB Hub, with the VID and
PID equal to the default values found in the USB3803 Datasheet.
The default configuration of the USB3803 is to enumerate as a Bus Powered Hub. This means that,
according to the USB 2.0 specification, the downstream ports are only allowed to provide 100mA of
current to the downsteam device. Although the evaluation board is designed to provide much more
current to the downstream ports, the PC host may generate an error. To avoid this condition, only
connect self powered USB 2.0 devices to the downstream ports when using the USB3803 EVB in it’s
default state. The USB3803 can also be configured as a Self Powered Hub through the I
2C Serial
Interface Registers. This will eliminate the 100mA limit error reported by the host PC. Refer to the
datasheet for more details.
Refer to the next chapters to see the customization options associated with the evaluation kit.
USB3803 WLCSP-EVB Evaluation Board User Manual
SMSC USB3803 EVB 3 Revision 1.0 (12-07-12)
USER MANUAL
3 Hardware
The USB3803 EVB is a board that shows the capabilities of the USB3803. The board consists of the
USB upstream and downstream ports, a INT_N LED for visual confirmation of the interrupts configured,
a header exposing the I2C pins, and additional circuitry that is used for I
2C communication.
3.1 USB Ports
The USB ports are mounted on the edges of the USB3803 EVB. The downstream ports use the
standard USB Type A receptacle. The label for the port is located near the receptacle. The USB
upstream port is a standard mini-B receptacle.
Figure 3.1 Block Diagram of the USB3803 EVB
Figure 3.2 Upstream and Downstream Ports
USB3803
Upstream
USB
Downstream
USB
Downstream
USB
Downstream
USB
Digital IO
LED
Upstream
Downstream1 Downstream2 Downstream3

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Varumärke: Microchip
Kategori: Inte kategoriserad
Modell: EVB-USB3803

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