Texas Instruments TUSB3410 User manual

TUSB3410 GeneralĆPurpose
Input/Output Evaluation
Board
September 2002 Universal Serial Bus Products
User’s Guide
SLLU041

IMPORTANT NOTICE
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accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TIdoesnotwarrantorrepresentthatanylicense, eitherexpress orimplied, isgranted underanyTIpatent right,
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Use of such information may require a license from a third party under the patents or other intellectual property
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Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated

EVM IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
Thisevaluationkit being soldbyTI is intendedforusefor ENGINEERING DEVELOPMENT OR EVALUATION
PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided
may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective
considerations, including product safety measures typically found in the end product incorporating the goods.
As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic
compatibility and therefore may not meet the technical requirements of the directive.
ShouldthisevaluationkitnotmeetthespecificationsindicatedintheEVMUser’sGuide,thekitmaybereturned
within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE
WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,
IMPLIED,ORSTATUTORY,INCLUDINGANYWARRANTY OFMERCHANTABILITY ORFITNESS FORANY
PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user
indemnifies TI from all claims arising from the handling or use of the goods. Please be aware that the products
receivedmaynotberegulatorycompliant oragency certified (FCC,UL, CE,etc.). Dueto theopen construction
oftheproduct,itistheuser’sresponsibilitytotakeanyandallappropriateprecautionswithregardtoelectrostatic
discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE
TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not
exclusive.
TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein.
Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM
User’sGuidepriortohandlingtheproduct.Thisnoticecontainsimportantsafetyinformationabouttemperatures
and voltages. For further safety concerns, please contact the TI application engineer.
Persons handling the product must have electronics training and observe good laboratory practice standards.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any
machine, process, or combination in which such TI products or services might be or are used.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated

EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range of 4.75 V and the output
voltage range of 4.75 V and 5.25 V.
Exceeding the specified input range may cause unexpected operation and/or irreversible
damage to the EVM. If there are questions concerning the input range, please contact a TI
field representative prior to connecting the input power.
Applyingloadsoutsideofthespecifiedoutputrangemayresultinunintendedoperationand/or
possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to
connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
Duringnormaloperation,somecircuitcomponentsmayhavecasetemperaturesgreaterthan
50°C.TheEVM isdesignedto operateproperlywith certain componentsabove 60°C aslong
astheinputandoutput rangesare maintained.Thesecomponentsincludebut arenot limited
tolinearregulators,switchingtransistors,passtransistors,andcurrentsenseresistors.These
typesof devicescanbeidentifiedusingtheEVM schematiclocated intheEVMUser’sGuide.
When placing measurement probes near these devices during operation, please be aware
that these devices may be very warm to the touch.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated

Related Documentation From Texas Instruments
v
Preface
Read This First
About This Manual
Thisuser’sguidedescribesthesetupandoperationoftheTUSB3410general-
purposeinput/outputevaluationboard.Familiaritywiththeuniversalserialbus
(USB) protocol and common lab testing equipment is required, and is as-
sumed throughout this user’s guide.
How to Use This Manual
This document contains the following chapters:
-Chapter 1—Required Hardware and Software
-Chapter 2—EVM Operation
-Chapter 3—Bill of Materials and EVM Layouts
-Appendix A—TUSB3410 GPIO EVM Schematic Diagram
Related Documentation From Texas Instruments
TUSB3410USBtoSerialPortControllerdatamanual LiteratureNo.SLLS519
FCC Warning
Thisequipmentisintendedforuseinalaboratorytestenvironmentonly.Itgen-
erates,uses,andcanradiateradiofrequencyenergyandhasnotbeentested
for compliance with the limits of computing devices pursuant to subpart J of
part 15 of FCC rules, which are designed to provide reasonable protection
against radio frequency interference. Operation of this equipment in other en-
vironmentsmaycauseinterferencewithradiocommunications,inwhichcase
the user at his own expense will be required to take whatever measures may
be required to correct this interference.

vi

Contents
vii
Contents
1 Required Hardware and Software 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Hardware Items 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Hardware Overview 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 EVM Operation 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 TUSB3410 EVM Setup 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Interfaces and USB Ports 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Power Supply 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Buttons 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Light Emitting Diodes (LEDs) 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 Jumpers 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7 EEPROM 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Bill of Materials and EVM Layouts 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Bill of Materials 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 EVM Layouts 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 TUSB3410 GPIO EVM Schematic Diagram A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures
1–1 TUSB3410 Evaluation Hardware 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–2 TUSB3410 GPIO Evaluation Board 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–1 Top Layer 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–2 Bottom Layer 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
2–1 Button Description 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 LED Description 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 Jumper Description 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

viii

1-1
Required Hardware and Software
Required Hardware and Software
TheTUSB3410general-purposeinput-outputEVM wasdesignedforusewith
a personal computer running a USB-enabled operating system. The PC
should be USB 1.1 or USB 2.0 spec compliant. This implies the BIOS, chip-
sets,andoperatingsystemareallspeccompliant.IftheBIOSisnotspeccom-
pliant, the system may not boot when USB devices are connected at power
up and the EVM may not function. Note that the EVM can only function in the
bus-powered mode.
Topic Page
1.1 Hardware Items 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Hardware Overview 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1

Hardware Items
1-2
1.1 Hardware Items
The TUSB3410 EVM is shown in Figure 1, together with typical
representations of the hardware items required for its use.
Figure 1–1.TUSB3410 Evaluation Hardware
PC
USB Cable
Serial Cable
USB EVM

Hardware Overview
1-3
Required Hardware and Software
1.2 Hardware Overview
The TUSB3410 GPIO EVM hardware platform is 4,3 cm ×6,8 cm in width ×
length.Throughoutthisdocument,textinsideofparentheses(ex.)isreference
designators found on the TUSB3210 EVM. See Figure 1–2 for a reference
pictureoftheEVM.First,alljumpersareinstalledwiththefactorysettings.See
Table 2–3 foradescriptionofjumpersettingsandmakeanyrequiredchanges
before using the EVM. The TUSB3410 GPIO EVM is designed to allow great
flexibility in evaluation while being very easy and practical to use. The EVM is
designed to run using a 12-MHz crystal and an I2CEEPROM. The EVMisset
up for bus-powered operation using a 5-V to 3.3-V voltage regulator. The
firmware installed at the factory in the EEPROM is special USB keyboard
firmware, which makes it very easy for evaluation on any USB-enabled OS
without the need for a device driver. The firmware installed is reference
firmware and the source code is available for developers. The RS-232 port is
available for monitoring 8052 MCU activity for debugging purposes. The
RS-232 port requires a 1-to-1 cable, not a null-modem cable. Several test
points have been added to the EVM for probing. An LED (D2) displays the
suspendstatusoftheTUSB3410device.AUSBcableshouldbepluggedinto
aUSBportonaPCorUSBhuband connected to the TUSB3410 EVM type-B
USB connector (U3).
Figure 1–2.TUSB3410 GPIO Evaluation Board

1-4

2-1
EVM Operation
EVM Operation
This chapter provides information required for proper operation of the
TUSB3410 GPIO EVM. This includes power and PC connection require-
ments, as well as descriptions of important operating features of the board,
such as switches, jumpers, and indicators.
Topic Page
2.1 TUSB3410 EVM Setup 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Interfaces and USB Ports 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Power Supply 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Buttons 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Light Emitting Diodes (LEDs) 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 Jumpers 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7 EEPROM 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2

TUSB3410 EVM Setup
2-2
2.1 TUSB3410 EVM Setup
The TUSB3410 general-purpose EVM is designed to support many USB
applications. The EVM comes in a default configuration that requires no
additionalcomponentsontheEVM.AfulldescriptionoftheTUSB3410device
is specified in the data manual. The PC must be running a USB-capable
operating system. Configure the EVM if required, based on desired settings
specified later in this section. Use a standard USB cable to connect the
TUSB3410 EVM to a downstream port of the PC or a USB hub tier.
2.2 Interfaces and USB Ports
The EVM uses a standard type-B connector for the upstream port. An I2C
serial interface is provided to access an I2C EEPROM. A UART port is
embedded in the microcontroller and is connected to the RS-232 port on the
EVM. The RS-232 port connection can not be disabled by using the jumpers.
Seejumpersettingsformoredetails.TherearefourbuttonsandfourLEDson
the EVM that can be used as general-purpose inputs and outputs to evaluate
how the system works.
2.3 Power Supply
The TUSB3410 EVM uses USB bus power as its power supply.
2.4 Buttons
Table 2–1.Button Description
Button Button Description
SW1 System reset
SW2 Wakes up system if system is in suspend mode
SW3 General-purpose input, pulls P3.0 low if pressed
SW4 General-purpose input, pulls P3.1 low if pressed
SW5 General-purpose input, pulls P3.4 low if pressed
SW6 General-purpose input, pulls P3.3 low if pressed
2.5 Light Emitting Diodes (LEDs)
Table 2–2.LED Description
LED LED Description
D2 LED on indicates that the EVM is suspended
LED off indicates that EVM is not suspended
D3 General-purpose output, indicates status of P3.0 (RXD)
D4 General-purpose output, indicates status of P3.1 (TXD)
D5 General-purpose output, indicates status of P3.4
D6 General-purpose output, indicates status of P3.3

Jumpers
2-3
EVM Operation
2.6 Jumpers
Table 2–3 is provided to help set up and configure the EVM platform jumpers
forthedesiredmodeofoperation.TheEVMcandownloadfirmwarecodefrom
thePCthroughaloadingprogram(mayormaynotbesuppliedwithyourEVM)
or from an I2C EEPROM. JP2 and JP3 are used to connect P3.0 and P3.1 to
D3andD4respectively. JP4 is for separating the SCL pin of the I2CEEPROM
from SCL of the TUSB3410.
Table 2–3.Jumper Description
Jumper Jumper Description
JP1 Installed: connect suspend LED to SUSP pin of TUSB3410
JP2 Installed: connect LED D4 and SW4 to P3.1 (GPIO_TXD)
JP3 Installed: connect LED D3 and SW3 to P3.0 (GPIO_RXD)
JP4 Installed: connect SCL of I2C EEPROM to SCL of TUSB3410 for normal operation
Uninstalled: downloads firmware from USB instead of I2C EEPROM
2.7 EEPROM
The I2C EEPROM is used to provide application-specific firmware. The
TUSB3410 automatically reads the EEPROM at power up via the I2C bus. A
header must be added to the application firmware before loading it into the
EEPROM. See the TUSB3410 data manual for a description of the header
definition. The header can be generated automatically using the I2C
header-generation utility software provided with the device.
TheEVMshipswithapreprogrammedEEPROMthathas keyboard controller
firmware. It enumerates properly when connected to a USB host.

2-4

3-1
Bill of Materials and EVM Layouts
Bill of Materials and EVM Layouts
ThischapterdescribesthebillofmaterialsandEVMlayoutsfortheTUSB3410
EVM.
Topic Page
3.1 Bill of Materials 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 EVM Layouts 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3

Bill of Materials
3-2
3.1 Bill of Materials
Item Qty. Reference Part Part Number PCB Footprint
1 1 CN2 Connector-DB9 747250-4 DB9-HF
2 2 C21, C1 1 µF C2012X7R1C105M SMT_0805
3 1 C2 4.7 µF C3216X7R1C475M SMT_1206
4 8 C3, C6, C8, C10, C49, C50, 0.1 µF C1608X7R1H104K SMT_0603
C51, C52
5 2 C4,C5 0.01 µF C1608X7R1H103K SMT_0603
6 7 C7, C9, C53, C54, C55, C56, C57 0.001 µF C1608X7R1H102K SMT_0603
7 2 C11, C12 22 pF C1608C0G1H220J SMT_0603
8 2 C20, C19 33 pF C1608C0G1H330J SMT_0603
9 1 D1 SOT-23-diode BAS21ZXCT-ND SOT23-DIODE
10 5 D2, D3, D4, D5, D6 LED 160-1421-1-ND SMT_0805
11 1 F2 TDK MPZ2012S331A MPZ2012S331A MPZ2012
12 4 JP1, JP2, JP3, JP4 Jumper HDR1X2
13 1 R1 90.9 kΩP100KCCT-ND SMT_0603
14 1 R2 100 kΩP100KCCT-ND SMT_0603
15 1 R3 1.5 kΩP1.50KCCT-ND SMT_0603
16 2 R4, R5 33 ΩP33.2CCT-ND SMT_0603
17 8 R9, R10, R14, R15, R16, R17, 1 kΩP1.00KCCT-ND SMT_0603
R18, R19
18 1 R11 32 kΩP32.4KCCT-ND SMT_0603
19 1 R12 10 kΩP10.0KCCT-ND SMT_0603
20 1 R13 15 kΩP15.0KCCT-ND SMT_0603
21 1 R20 5 kΩP1.50KCCT-ND SMT_0603
22 1 R21 5 kΩP10.0KCCT-ND SMT_0603
23 6 SW1, SW2, SW3, SW4, SW5, SW6 Switch 7914G-1-000E MOM-SW
24 2 TP5, TP6 T point R HDR1X1 TP52
25 2 TP7,TP8 Test point TP52
26 5 TP9, TP10, TP11, TP12, TP13 Test point, small TP52
27 1 U1 TUSB3410 TUSB3410 LQFP-32
28 1 U2 TPS76933 TPS76933DBVT SOT-5P
29 1 U3 Type B USB-shield AE1085-ND 4P-B-RECEP
30 1 U5 8-pin socket for 24LCxx A400-ND DIP8_SKT
31 1 U6 MAX3221E MAX322E T.I. MAX3221E
32 1 Y1 12-MHz crystal
HC49SMD P-16695 CRYSTEK

EVM Layouts
3-3
Bill of Materials and EVM Layouts
3.2 EVM Layouts
Figure 3–1.Top Layer
Figure 3–2.Bottom Layer

3-4