EVB-USB3503 QFN
Evaluation Board
User’s Guide
2014 Microchip Technology Inc.
DS50002252A
EVB-USB3503 QFN Evaluation Board User’s Guide
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device applications and the like is provided only for your convenience and may be
superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO
REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE,
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hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC, FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32
logo, rfPIC, SST, SST Logo, SuperFlash and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and
other countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MTP, SEEVAL and The Embedded Control Solutions Company are
registered trademarks of Microchip Technology Incorporated in the U.S.A.
Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries.
Analog-for-the-Digital Age, Application Maestro, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,
dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM,
MPF, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O, Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA and ZScale are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.
GestIC and ULPP are registered trademarks of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
flexPWR, JukeBlox, Kleer, KleerNet, MediaLB, and MOST
The preceding is a non-exhaustive list of trademarks in use in the US and other countries. For a complete list of trademarks, email a
request to legal.department@microchip.com. The absence of a trademark (name, logo, etc.) from the list does not constitute a waiver
of any intellectual property rights that SMSC has established in any of its trademarks.
All other trademarks mentioned herein are property of their respective companies.
© 2014, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.
ISBN: 9781620779804
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
DS50002252A-page 2
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
2014 Microchip Technology Inc.
Object of Declaration: EVB-USB3503 QFN Evaluation Board User’s Guide
2014 Microchip Technology Inc.
DS50002252A-page 3
M
EVB-USB3503 QFN
EVALUATION BOARD
USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 5
Introduction............................................................................................................ 5
Document Layout .................................................................................................. 5
Conventions Used in this Guide ............................................................................ 6
Warranty Registration............................................................................................ 7
The Microchip Web Site ........................................................................................ 7
Customer Support ................................................................................................. 7
Document Revision History ................................................................................... 7
Chapter 1. Overview
1.1 EVB-USB3503 QFN Overview and Features ................................................. 9
1.2 Features ......................................................................................................... 9
1.3 General Description ........................................................................................ 9
Chapter 2. Hardware Configuration
2.1 Hardware Description ................................................................................... 10
2.1.1 Port Assignment ........................................................................................ 10
2.1.2 USB3503 Configuration ............................................................................. 11
2.1.3 Clock Source – 26 MHz Oscillator ............................................................. 12
2.1.4 Power Source – Self-Powered .................................................................. 13
2.1.5 Interrupt LED ............................................................................................. 14
2.1.6 Connector Descriptions ............................................................................. 14
Chapter 3. Operation
3.1 Contents of the Kit ........................................................................................ 17
3.2 Initial Bring-Up .............................................................................................. 17
3.3 Evaluation Software ..................................................................................... 17
3.3.1 Digital Control ............................................................................................ 18
3.3.2 I2C Communication ................................................................................... 19
3.3.3 Quick Configuration and Customization .................................................... 19
Appendix A. EVB-USB3503 QFN Evaluation Board Schematics
A.1 Introduction .................................................................................................. 21
Appendix B. Bill of Materials (BOM)
B.1 Introduction .................................................................................................. 23
Worldwide Sales and Service .................................................................................... 26
2014 Microchip Technology Inc.
DS50002252A-page 4
EVB-USB3503 QFN
EVALUATION BOARD
USER’S GUIDE
Preface
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.
For the most up-to-date information on development tools, see the MPLAB® IDE online help.
Select the Help menu, and then Topics to open a list of available online help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
EVB-USB3503 QFN Evaluation Board. Items discussed in this chapter include:
•
•
•
•
•
•
Document Layout
Conventions Used in this Guide
Warranty Registration
The Microchip Web Site
Customer Support
Document Revision History
DOCUMENT LAYOUT
This document describes how to use the EVB-USB3503 QFN Evaluation Board as a
demonstration platform optimized for portable applications. The manual layout is as
follows:
• Chapter 1. “Overview” – Shows a brief description of the EVB-USB3503 QFN
Evaluation Board
• Chapter 2. “Hardware Configuration” – Includes information about the
hardware configuration of the EVB-USB3503 QFN Evaluation Board.
• Chapter 3. “Operation” – Provides information about installing and operating the
EVB-USB3503 QFN Evaluation Board and Evaluation Software.
• Appendix A. “EVB-USB3503 QFN Evaluation Board Schematics” – Provides
information about known issues and limitations associated with EVB-USB3503.
2014 Microchip Technology Inc.
DS50002252A-page 5
EVB-USB3503 QFN Evaluation Board User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Arial font:
Italic characters
Represents
Referenced books
Emphasized text
A window
A dialog
A menu selection
A field name in a window or
dialog
A menu path
MPLAB® IDE User’s Guide
...is the only compiler...
the Output window
the Settings dialog
select Enable Programmer
“Save project before build”
A dialog button
A tab
A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
A key on the keyboard
Click OK
Click the Power tab
4‘b0010, 2‘hF1
Italic Courier New
Sample source code
Filenames
File paths
Keywords
Command-line options
Bit values
Constants
A variable argument
Square brackets [ ]
Optional arguments
Curly brackets and pipe
character: { | }
Ellipses...
Choice of mutually exclusive
arguments; an OR selection
Replaces repeated text
#define START
autoexec.bat
c:\mcc18\h
_asm, _endasm, static
-Opa+, -Opa0, 1
0xFF, ‘A’
file.o, where file can be
any valid filename
mcc18 [options] file
[options]
errorlevel {0|1}
Initial caps
Quotes
Underlined, italic text with
right angle bracket
Bold characters
N‘Rnnnn
Text in angle brackets < >
Courier New font:
Plain Courier New
Represents code supplied by
user
DS50002252A-page 6
Examples
File>Save
Press ,
var_name [,
var_name...]
void main (void)
{ ...
}
2014 Microchip Technology Inc.
Preface
WARRANTY REGISTRATION
Please complete the enclosed Warranty Registration Card and mail it promptly.
Sending the Warranty Registration Card entitles users to receive new product updates.
Interim software releases are available at the Microchip web site.
THE MICROCHIP WEB SITE
Microchip provides online support via our web site at www.microchip.com. This web
site is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the web site contains the following
information:
• Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
•
•
•
•
Distributor or Representative
Local Sales Office
Field Application Engineer (FAE)
Technical Support
Customers should contact their distributor, representative or field application engineer
(FAE) for support. Local sales offices are also available to help customers. A listing of
sales offices and locations is included in the back of this document.
Technical support is available through the web site at:
http://www.microchip.com/support
DOCUMENT REVISION HISTORY
Revision A (March 2014)
• Initial Release of this Document.
2014 Microchip Technology Inc.
DS50002252A-page 7
EVB-USB3503 QFN Evaluation Board User’s Guide
NOTES:
DS50002252A-page 8
2014 Microchip Technology Inc.
EVB-USB3503 QFN
EVALUATION BOARD
USER’S GUIDE
Chapter 1. Overview
1.1
EVB-USB3503 QFN OVERVIEW AND FEATURES
The USB3503 is a low-power, full-featured and OEM configurable Multi-Transaction
Translator (MTT) USB 2.0 hub controller with three downstream ports optimized for
portable applications. The USB3503 is fully compliant with the USB 2.0 Specification,
High-Speed Inter-Chip (HSIC) USB Electrical Specification Revision 1.0 and attaches
to an upstream port as a high-speed hub. The 3-port hub supports low-speed,
full-speed and high-speed downstream devices on all of the enabled downstream
ports. The upstream HSIC port supports only high-speed operation. The
EVB-USB3505 QFN Evaluation Board demonstrates a stand-alone application for the
USB3503 device. See Section 1.2 “Features” for additional information.
1.2
FEATURES
• USB3503 in a 32-pin QFN RoHS compliant package
• One upstream HSIC port
• Three USB 2.0 downstream ports with ganged port power and overcurrent sense
(OCS)
• High-Speed (480 Mbps), Full-Speed (12 Mbps) and Low-Speed (1.5 Mbps)
compatible on downstream USB ports
• Multi-Transaction Translator is enabled
• Supports internal default hub configuration. Optionally supports external
configuration via I2C
• I2C interface header available
• Self-Powered operation
• Operates from one single voltage (+5.0 VDC, 4 Amp regulated) external power
supply
• On Board +3.3 VDC and +1.8 VDC regulators
• Interrupt LED indicator
• Single 26 MHz oscillator clock source
• Schematics, layout and bill of materials are available to minimize new product
development time
1.3
GENERAL DESCRIPTION
The EVB-USB3503 QFN is an evaluation and demonstration platform featuring the
USB3503 Ultra Fast USB 2.0 Hub on an RoHS compliant Printed Circuit Board (PCB).
The EVB-USB3503 QFN is designed to demonstrate the unique features of this device
using a low-cost PCB implementation with ganged port power control for the three
downstream USB 2.0 ports.
The EVB-USB3503 QFN is designed to support internal default configuration settings
or external configuration through I2C via the SDA and SCL header pins. Figure 2-6
details the top and bottom level silk screen and copper layers. A block diagram of the
evaluation board can be seen in Figure 2-7.
2014 Microchip Technology Inc.
DS50002252A-page 9
EVB-USB3503 QFN
EVALUATION BOARD
USER’S GUIDE
Chapter 2. Hardware Configuration
2.1
HARDWARE DESCRIPTION
2.1.1
Port Assignment
The USB 2.0 downstream ports are numbered 1 through 3. All downstream ports have
USB 2.0 connectors with USB 2.0 compliant decoupling and separate shield grounds.
Power to all downstream ports is controlled through the MIC2026-1B device U4. When
port power is enabled via the PRTPWR pin on the USB3503, port power is delivered to
all 3 downstream USB ports.
Note:
Do not exceed 4 A total current consumption from the + 5 VDC power
supply.
The EVB-USB3503 QFN must be connected to an HSIC upstream host via the DATA
(J5) and STROBE (J4) connectors using the provided U.FL coaxial cables. When
removing these cables from the EVB for any reason, the provided HSIC Extraction tool
must be used. Figure 2-1shows the recommended usage of the HSIC extraction tool
per the Hirose U.FL data sheet on proper use of the plugs.
2014 Microchip Technology Inc.
DS50002252A-page 10
Hardware Configuration
FIGURE 2-1:
RECOMMENDED USAGE OF THE HSIC EXTRACTION TOOL
Usage Precautions
1. Plugs
(1) Mating/Unmating
1) To disconnect the connectors, insert the end portion of U.FL-LP-N-2 under the
connector flanges and pull off vertically, in the direction of the connector mating axis.
2) To mate the connectors, the mating axes of both connectors must be aligned. The
“click” confirms a fully-mated connection. Do not attempt to insert on an extreme
angle.
(2) Pull forces on the cable after the connectors are mated. Do not apply a load to the
cable in excess of the values indicated in the diagram below.
(3) Precautions
Do NOT forcefully twist or deform wires.
2.1.2
USB3503 Configuration
2
Default: I C configuration is bypassed by default on the EVB-USB3503 QFN evaluation board. The hub will use the internal default configuration and automatically transition to the hub communication stage when it is powered on.
I2C Option: SW3 must be switched to the 1-2 (see Figure 2-2) position before
powering on the hub. SW3 in position 1-2 pulls HUB_CONNECT to ground and will
hold the hub in its configuration stage. The hub will not transition to the hub
communication stage until CONNECT_N bit of SP_ILOCK register is negated or until
SW3 is switched back to position 2-3. Additional hardware capable of two-wire I2C
communication is required for I2C operation. For additional information regarding I2C
communication protocol on the USB3503, see the USB3503 data sheet.
2014 Microchip Technology Inc.
DS50002252A-page 11
EVB-USB3503 QFN Evaluation Board User’s Guide
FIGURE 2-2:
HUB_CONNECT SWITCH POSITIONS
2.1.3
Clock Source – 26 MHz Oscillator
By default, a 26 MHz oscillator (Y1) is populated on the evaluation board as the clock
source for the USB3503. The REFSEL[1:0] pins are used to select the frequency of the
clock. The board is configured by default to select a 26 MHz clock source by both pulling the REF_SEL0 pin high to +3.3 VDC and pulling the REF_SEL1 pin low to ground.
The USB3503 can accept several clock frequencies. If the clock source on the EVB is
changed, the resistors connected to the REF_SEL[1:0] pins must be reconfigured to
select the appropriate frequency. Table 2-1 shows the resistors that are required in
order to select the compatible frequency. The location of the resistors on the EVB can
be seen in Figure 2.1.4.
TABLE 2-1:
REFSEL[1:0]
DS50002252A-page 12
CLOCK FREQUENCY SELECTION RESISTOR CONFIGURATION
Clock Frequency
R18
R21
R27
R30
00
38.4 MHz
Empty
Empty
Install
Install
01
26.0 MHz (default)
Empty
Install
Install
Empty
10
19.2 MHz
Install
Empty
Empty
Install
11
12.0 MHz
Install
Install
Empty
Empty
2014 Microchip Technology Inc.
Hardware Configuration
FIGURE 2-3:
CLOCK FREQUENCY SELECTION REGISTERS
2.1.4
Power Source – Self-Powered
The EVB-USB3503 QFN only supports self-powered operation and is powered by one
+5 VDC regulated external power supply. The +5 VDC, 4 A power supply plugs into the
board via a 2.1 mm connector (J3). The external power supply controls the on board
+3.3 VDC voltage regulator and on board +1.8 VDC voltage regulator. The on board
+3.3 VDC voltage regulator feeds VBAT on the USB3503. The on board +1.8 VDC voltage regulator feeds VDD_CORE_REG on the USB3503. The USB3503 also has an
internal on-chip1.2 V regulator to power the digital logic core.
To supply 3.3 VDC externally, remove resistor R1 and connect a 3.3 VDC voltage supply to test point TP2.
To supply 1.8 VDC externally, remove resistor R8 and connect a 1.8 VDC voltage supply to test point TP3.
The USB3503 can also function with a single power supply; to do this remove R8 and
place a 0 Ohm resistor on R9. This connects the VDD_CORE_REG pin to the
VDD33_BYP pin allowing the USB3503’s internal 3.3V regulator to supply the
VDD_CORE_REG voltage.
Table 2-2 summarizes the different power options and defines what resistors must be
populated for each configuration. Figure 2.1.5 shows the locations of the back-side
resistors that are used to configure the different power options.
TABLE 2-2:
VBAT AND VDD_CORE_REG VOLTAGE SOURCE CONTROL
VBAT Source
VDD_CORE_REG Source
R1
R8
R9
On Board Regulator
On Board Regulator
External (TP2)
On Board Regulator
Install
Install
Empty
Empty
Install
Empty
External (TP2)
External (TP3)
Empty
Empty
Empty
On Board Regulator
VDD33_BYP
Install
Empty
Install
External (TP2)
VDD33_BYP
Empty
Empty
Install
2014 Microchip Technology Inc.
DS50002252A-page 13
EVB-USB3503 QFN Evaluation Board User’s Guide
FIGURE 2-4:
VOLTAGE SOURCE CONTROL RESISTORS
2.1.5
Interrupt LED
LED1 shows the status of the INT_N pin and allows the user to monitor interrupts. The
behavior of the INT_N pin is user-configurable and can be changed by writing to a configuration register.
2.1.6
Connector Descriptions
The EVB-USB3503 features HSIC upstream and 3 downstream USB ports, an I2C configuration header, and several voltage test points. See Table 2-3 for the complete list of
connectors. See Figure 2-2 for an image of the connectors on the EVB. For more
details, please see Appendix A. “EVB-USB3503 QFN Evaluation Board Schematics”.
TABLE 2-3:
DS50002252A-page 14
CONNECTOR DESCRIPTION
CONNECTOR
TYPE
DESCRIPTION
J1
2x5 headers
Aardvark I2C connection
J3
2.1 mm power
jack
+5 VDC power supply connection
J4
U.FL connector
Upstream HSIC Data line connection
J5
U.FL
connector
Upstream HSIC Strobe line connection
TP1
Test point
Ground test point
TP2
Test point
VBAT +3.3 VDC test point
2014 Microchip Technology Inc.
Hardware Configuration
TABLE 2-3:
FIGURE 2-5:
CONNECTOR DESCRIPTION (CONTINUED)
CONNECTOR
TYPE
DESCRIPTION
TP3
1x3 headers
VDD_CORE +1.8 VDC test point
TP6
1x8 headers
Ground test point
P1
USB-A connector
Downstream port 1 connector
P2
USB-A connector
Downstream port 2 connector
P3
USB-A connector
Downstream port 3 connector
SW1
Push-Button
Switch
USB3503 Reset
SW2
2 Position Switch
Not Used
SW3
2 Position Switch
HUB_CONNECT mode (see
Section 2.1.2 “USB3503 Configuration”)
CONNECTOR, TEST POINT, AND SWITCH LOCATIONS
Component side top and bottom silk screen layers are shown in Figure 2-6. A block diagram of the EVB is shown in Figure 2-7.
2014 Microchip Technology Inc.
DS50002252A-page 15
EVB-USB3503 QFN Evaluation Board User’s Guide
FIGURE 2-6:
PCB TOP AND BOTTOM SILK SCREEN IMAGES
FIGURE 2-7:
EVB-USB3503 QFN BLOCK DIAGRAM
5V
IN
LDO
3.3V
PORT
POWER
USB3503
VBAT
PRTPWR
LDO
1.8V
EN
OUT
VDDCORE_REG
VBUS
PORT
1
VDD33_BYP
VDD12_BYP
D1+
D1-
D+
DVBUS
U.FL CONNECTORS
STROBE
DATA
PORT
2
D2+
D2-
1.8V
D+
DVBUS
I2C
Header
DS50002252A-page 16
SCL
SDA
PORT
3
D3+
D3-
D+
D-
2014 Microchip Technology Inc.
EVB-USB3503 QFN
EVALUATION BOARD
USER’S GUIDE
Chapter 3. Operation
3.1
CONTENTS OF THE KIT
The USB3503 EVB includes the basic equipment necessary for evaluation. The items
included in the kit are:
1.
2.
3.
4.
USB3503 QFN EVB
5V DC Power Supply
U.FL Extraction Tool
Documentation
The kit does not include an HSIC host device, U.FL cables, any downstream USB
devices, I2C master hardware, or other components for board customization.
3.2
INITIAL BRING-UP
The USB3503 EVB has a default configuration that allows it to operate as a stand alone
hub. To begin, connect the U.FL connectors to an HSIC host. Then, plug the evaluation
board into the 5V power supply. The USB3503 EVB will enumerate as a Generic USB
Hub with the VID and PID equal to the default values found in the USB3503 data sheet.
The default configuration of the USB3503 is to enumerate as a Self Powered Hub. This
means that, according to the USB 2.0 specification, the downstream ports are only
allowed to provide 500mA of current to the downstream device. Refer to the next section for customization options associated with the evaluation kit.
3.3
EVALUATION SOFTWARE
The USB3503 EVB supports evaluation software available online that can be used to
configure the USB3503. This software requires the use of a Total Phase Aardvark
USB-I2C adapter (not included with the Evaluation Kit). To install the software, run
Setup.exe. This will install the USB3503 Evaluation Software, the LabVIEW Runtime
engine (to run the executable), and the Total Phase drivers to communicate with the
Aardvark. Once the software has been installed, locate and run the USB3503 Evaluation.exe program on the computer. Connect the Aardvark to the USB3503 EVB with
the red wire facing the power port, as in Figure .
2014 Microchip Technology Inc.
DS50002252A-page 17
EVB-USB3503 QFN Evaluation Board User’s Guide
FIGURE 3-1:
AARDVARK CONNECTION
The software allows the user to control the digital input pins RESET_N and
CONNECT. It also can monitor the INT_N pin for interrupts. There is a section to
communicate with the I2C serial port, as well as some additional quick configuration
and customization options.
FIGURE 3-2:
USB3503 EVALUATION SCREEN
3.3.1
Digital Control
The RESET_N and HUB_CONNECT pins can be controlled in real time with the Digital
Control array. Each button in the array corresponds to the pin with the matching name.
When the button is orange, the pin is at logic level high. When the button is black the
voltage is a logic level low. Refer to the green box in Figure 3.3.2 for the Digital Con-
DS50002252A-page 18
2014 Microchip Technology Inc.
Operation
trol array location. Set the RESET_N pin low to reset the part and place it into the lowest power state. If the CONNECT pin is low when the RESET pin transitions from low
to high, the USB3503 will remain in a state that allows the serial interface registers to
be manipulated. To enumerate the hub, either write 00h to register E7h, or drive the
CONNECT pin high by pressing the CONNECT button in the Digital Control. Once the
USB3503 has enumerated, the serial interface registers should not be modified.
Note:
FIGURE 3-3:
To prevent the Aardvark from driving against another voltage, the Aardvark
is running in an Open/Drain mode. Therefore it is important that all switches
on the board pull the pins up to the VCC value.
DIGITAL CONTROL (GREEN) AND REGISTERS (YELLOW)
3.3.2
I2C Communication
The application also contains a general I2C register read/write section. The Bit and
Description display the serial interface register descriptions found in the USB3503
data sheet. The Register display can be used to select the proper serial interface register to manipulate. Click on the Value or Bit box above to change the value of the register. Once the desired value and register are selected, press the Write button to
change the value on the part. Click on the Read button and the Value and Bit boxes
will update the current value on the part. Refer to the USB3503 data sheet for a detailed
description of each register and operation of the device.
3.3.3
Quick Configuration and Customization
The USB3503 Evaluation program also contains some quick configuration and customization options that automatically update the registers to match the desired configuration. The USB3503 can enumerate as a Self Powered or Bus Powered Hub with 1, 2
or 3 downstream ports. The VID, PID, DID and enumeration strings can also be customized to allow the USB3503 to enumerate with whatever identification is desired.
2014 Microchip Technology Inc.
DS50002252A-page 19
EVB-USB3503 QFN Evaluation Board User’s Guide
To change these values; update the configuration section to the desired options, then
press the Configure button. The part will then reset, pull the CONNECT pin low and
update the registers as specified. To run with these options, either raise the CONNECT
pin, or press the Connect button.
FIGURE 3-4:
DS50002252A-page 20
QUICK CONFIGURATION OPTIONS
2014 Microchip Technology Inc.
EVB-USB3503 QFN
EVALUATION BOARD
USER’S GUIDE
Appendix A. EVB-USB3503 QFN Evaluation Board
Schematics
A.1
INTRODUCTION
This appendix shows the EVB-USB3503 QFN Evaluation Board schematics.
2014 Microchip Technology Inc.
DS50002252A-page 21
DS50002252A-page 22
2014 Microchip Technology Inc.
EVB-USB3503 QFN Evaluation Board User’s Guide
EVB-USB3503 QFN EVALUATION BOARD SCHEMATIC 1
FIGURE A-1:
EVB-USB3503 QFN
EVALUATION BOARD
USER’S GUIDE
Appendix B. Bill of Materials (BOM)
B.1
INTRODUCTION
This appendix shows the EVB-USB3503 QFN Evaluation Board Bill of Materials (BOM).
2014 Microchip Technology Inc.
DS50002252A-page 23
Item Qty
EVB-USB3503 QFN EVALUATION BOARD BILL OF MATERIALS
Reference Designator(s)
Description
Manufacturer
Manufacturer Part Number
2014 Microchip Technology Inc.
1
3
C1 C5 C16
CAPACITOR CERAMIC 4.7UF 10V X5R 0603
TAIYO YUDEN
LMK107BJ475KA-T
2
2
C2 C7
CAPACITOR CERAMIC 18PF 50V 0402 SMD
PANASONIC
ECJ-0EC1H180J
3
4
C3 C6 C8 C19 C20 C21
CAPACITOR CERAMIC 0.1UF 10V X5R 0402
PANASONIC
ECJ-0EB1A104K
4
2
C4 C10
CAPACITOR CERAMIC 0.01UF 10% 16V X7R 040
AVX
0402YC103KAT2A
5
3
C9 C13 C15
CAP ALUM 150UF 6.3V 20% SMD
NICHICON
PCG0J151MCL1GS
6
2
C11 C18
CAP CERAMIC .1UF 6.3V X5R 0201
MURATA ERIE
GRM033R60J104KE19D
7
1
C12
CAPACITOR CERAMIC 2.2UF 6.3V X5R 0402
MURATA ERIE
ECJ-0EB0J225M
8
1
C17
CAPACITOR CERAMIC 0.1UF 16V 10% X7R 0603
PANASONIC
ECJ-1VB1C104K
9
1
C22
CAPACITOR CERAMIC 1.0UF 6.3V 20% X5R 040
MURATA ERIE
GRM155R60J105ME19D
10
1
J1
HEADER, 2 X 5, 0.1 INCH, VERTICAL
SAMTEC
TSW-105-07-L-D
11
0
J2
CONNECTOR RECEPT MICRO USB TYPE AB SMT
JAE Electronics
DX4R205JJAR1800
12
1
J3
CONNECTOR POWER JACK 2.1X5.5MM HIGH CURR
CUI STACK
PJ-002AH
13
2
J4 J5
CONN RECPT ULTRA-MINI COAX SMD
HIROSE
U.FL-R-SMT(10)
14
1
L1
FERRITE BEAD, 120 OHM, 0.5A, 0.1DCR, 060
PANASONIC
EXC-3BP121H
15
1
LED1
LED GREEN SMT
STANLEY
BG1111C-TR
16
3
P1 P2 P3
RECEPTACLE, USB, STYLE B, RIGHT ANGLE
FCI
87520-0010BLF
17
3
R1 R5 R8 R35
RESISTOR ZERO OHM 1/4W 5% 1206
YAGEO
RC1206JR-070RL
18
1
R2
RESISTOR 51.0K OHM 1/10W 1% 0402 SMD
PANASONIC
ERJ-2RKF5102X
19
2
R3 R7
RESISTOR 30.1K OHM 1/10W 1% 0402 SMD
PANASONIC
ERJ-2RKF3012X
20
13
R4 R10 R11 R13 R14 R15 R16 R18
R19 R20 R21 R23 R24 R26 R27 R28
R29 R30 R34
RESISTOR 10K OHM 1/16W 5% 0402 SMD
PANASONIC
ERJ-2GEJ103X
21
1
R6
RESISTOR 14.3K OHM 1/10W 1% 0402 SMD
PANASONIC
ERJ-2RKF1432X
22
4
R9 R12 R25 R31 R32 R33
RESISTOR ZERO OHM 1/16W 5% 0402 SMD
YAGEO
RC0402JR-070RL
23
2
R17 R22
RESISTOR 1.0K OHM 1/16W 5% 0402 SMD
PANASONIC
ERJ-2GEJ102X
24
1
R36
RESISTOR 12.0K OHM 1/20W 1% 0201 SMD
PANASONIC
ERJ-1GEF1202C
25
1
R37
RESISTOR 330 OHM 1/16W 1% 0402 SMD
YAGEO
RC0402FR-07330RL
26
1
SW1
SWITCH TACTILE 6MM EXTEND ACT 160GF
E-SWITCH
TL1105SPF160Q
Notes
DNP: C19 C21
DNP: J2
DNP: R35
DNP:
R18 R23 R24 R28
R29 R30
DNP: R9 R32
EVB-USB3503 QFN Evaluation Board User’s Guide
DS50002252A-page 24
TABLE B-1:
2014 Microchip Technology Inc.
TABLE B-1:
Item Qty
EVB-USB3503 QFN EVALUATION BOARD BILL OF MATERIALS (CONTINUED)
Reference Designator(s)
Description
Manufacturer
Manufacturer Part Number
27
2
SW2 SW3
SWITCH SLIDE SPDT SMD GULL
COPAL ELECTRONICS
CJS-1200TB
28
2
TP1 TP6
TEST POINT LOOP COMPACT BLACK
KEYSTONE
5006
29
2
TP2 TP3
TEST POINT LOOP COMPACT ORANGE
KEYSTONE
5008
30
2
U1 U2
IC 200MA LDO LINEAR REG SOT23-6
TEXAS INSTRUMENTS
TPS79301DBVRQ1
31
1
U4
POWER SWITCH USB MIC2026-1B
MICREL
MIC2026-1YM
32
1
U5
IC SCHMITT-TRG INV GATE SOT23-5
TEXAS INSTRUMENTS
SN74AHC1G14DBVR
33
1
U6
USB3503
MICROCHIP
USB3503
34
1
Y1
OSCILLATOR PROG 3.3V +-50PPM SMD
ABRACON
AP3S-26.0MHz
Notes
Bill of Materials (BOM)
DS50002252A-page 25
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DS50002252A-page 26
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Tel: 86-23-8980-9588
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Tel: 86-571-2819-3187
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Tel: 852-2943-5100
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Tel: 86-25-8473-2460
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Tel: 86-532-8502-7355
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Tel: 48-22-3325737
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Fax: 886-3-5770-955
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Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
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Tel: 46-8-5090-4654
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Tel: 44-118-921-5800
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10/28/13
2014 Microchip Technology Inc.
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