Microchip Technology UCS2112 User manual

2015 Microchip Technology Inc. DS50002420A
UCS2112
Dual USB Port Power
Evaluation Board
User’s Guide

DS50002420A-page 2 2015 Microchip Technology Inc.
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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
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• Microchip is willing to work with the customer who is concerned about the integrity of their code.
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Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
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are for its PIC®MCUs and dsPIC®DSCs, KEELOQ®code hopping
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YSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer,
LANCheck, MediaLB, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC,
SST, SST Logo, SuperFlash and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
The Embedded Control Solutions Company and mTouch are
registered trademarks of Microchip Technology Incorporated
in the U.S.A.
Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo,
CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit
Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet,
KleerNet logo, MiWi, motorBench, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach,
Omniscient Code Generation, PICDEM, PICDEM.net, PICkit,
PICtail, RightTouch logo, REAL ICE, SQI, Serial Quad I/O,
Total Endurance, TSHARC, USBCheck, VariSense,
ViewSpan, WiperLock, Wireless DNA, and ZENA 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.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2015, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
ISBN: 978-1-63277-810-9

2015 Microchip Technology Inc. DS50002420A-page 3
Object of Declaration: UCS2112 Dual USB Port Power Evaluation Board

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NOTES:

UCS2112 DUAL USB PORT POWER
EVALUATION BOARD USER’S GUIDE
2015 Microchip Technology Inc. DS50002420A-page 5
Table of Contents
Preface ...........................................................................................................................7
Introduction............................................................................................................ 7
Document Layout .................................................................................................. 7
Conventions Used in this Guide............................................................................ 8
Recommended Reading........................................................................................ 9
The Microchip Web Site ........................................................................................ 9
Customer Support................................................................................................. 9
Document Revision History................................................................................... 9
Chapter 1. Product Overview
1.1 Introduction ...................................................................................................11
1.2 UCS2112 Evaluation System .......................................................................11
1.3 What the UCS2112 Dual USB Port Power Evaluation Board Kit Contains .. 12
Chapter 2. Installation and Operation
2.1 Introduction ...................................................................................................13
2.2 Connectors on the Evaluation Board ............................................................ 13
2.3 LEDs on the Evaluation Board ..................................................................... 14
2.4 Test Points on the Evaluation Board ............................................................ 15
2.5 Software Installation ..................................................................................... 16
Chapter 3. Hardware Description
3.1 UCS2112 Device Overview ..........................................................................21
3.2 USB84604 Device ........................................................................................21
3.3 DC-DC converter with MCP19118 ...............................................................21
Chapter 4. Software Description
4.1 Overview ...................................................................................................... 23
4.2 Interface Description and Operation .............................................................24
4.2.1 Automated Current Sampling Start/Stop Buttons ......................................24
4.2.2 Status Indicators ........................................................................................24
4.2.3 System Monitoring Tab .............................................................................25
4.2.4 ALERT# pin assertion and fault handling ..................................................26
4.2.5 Advanced Configuration Tab .....................................................................27
4.2.6 Manual Register Configuration Tab ...........................................................29
4.2.7 Status Bar ..................................................................................................30
Appendix A. Schematic and Layouts
A.1 Introduction ..................................................................................................31
A.2 Board – Schematic 1 .................................................................................... 32
A.3 Board – Schematic 2 .................................................................................... 33

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A.4 Board – Top Silk .......................................................................................... 34
A.5 Board – Top Copper and Silk ....................................................................... 34
A.6 Board – Top Copper .................................................................................... 35
A.7 Board – Inner 1 - GND ................................................................................. 35
A.8 Board – Inner 2 - Signal ............................................................................... 36
A.9 Board – Bottom Copper ............................................................................... 36
A.10 Board – Bottom Copper and Silk ............................................................... 37
A.11 Board – Bottom Silk ................................................................................... 37
Appendix B. Bill of Materials.......................................................................................41
Worldwide Sales and Service .....................................................................................42

UCS2112 DUAL USB PORT POWER
EVALUATION BOARD USER’S GUIDE
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Preface
INTRODUCTION
This chapter contains general information that will be useful to know before using the
UCS2112 Dual USB Port Power Evaluation Board. Items discussed in this chapter
include:
•Document Layout
•Conventions Used in this Guide
•Recommended Reading
•The Microchip Web Site
•Customer Support
•Document Revision History
DOCUMENT LAYOUT
This document describes how to use the UCS2112 Dual USB Port Power Evaluation
Board. The manual layout is as follows:
•Chapter 1. “Product Overview” – Important information about the UCS2112
Dual USB Port Power Evaluation Board.
•Chapter 2. “Installation and Operation” – Includes instructions on how to install
the board.
•Chapter 3. “Hardware Description” – Describes the UCS2112 Dual USB Port
Power Evaluation Board features and functionalities.
•Chapter 4. “Software Description” – Describes the PC Graphical User Interface
that operates the UCS2112 Dual USB Port Power Evaluation Board.
•Appendix A. “Schematic and Layouts” – Shows the schematic and layout
diagrams for the UCS2112 Dual USB Port Power Evaluation Board.
•Appendix B. “Bill of Materials” – Lists the parts used to build the UCS2112 Dual
USB Port Power Evaluation Board.
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
“DSXXXXXXXXA”, where “XXXXXXXX” 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.

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CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description Represents Examples
Arial font:
Italic characters Referenced books MPLAB®IDE User’s Guide
Emphasized text ...is the only compiler...
Initial caps A window the Output window
A dialog the Settings dialog
A menu selection select Enable Programmer
Quotes A field name in a window or
dialog “Save project before build”
Underlined, italic text with
right angle bracket A menu path File>Save
Bold characters A dialog button Click OK
A tab Click the Power tab
N‘Rnnnn A number in verilog format,
where N isthe total number of
digits, R is the radix and n is a
digit.
4‘b0010, 2‘hF1
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>
Courier New font:
Plain Courier New Sample source code #define START
Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’
Italic Courier New A variable argument file.o, where file can be
any valid filename
Square brackets [ ] Optional arguments mcc18 [options] file
[options]
Curly brackets and pipe
character: { | } Choice of mutually exclusive arguments; an OR selection errorlevel {0|1}
Ellipses... Replaces repeated text var_name [,
var_name...]
Represents code supplied by
user void main (void) { ...
}

Preface
2015 Microchip Technology Inc. DS50002420A-page 9
RECOMMENDED READING
This user's guide describes how to use UCS2112 Dual USB Port Power Evaluation
Board. Other useful documents are listed below. The following Microchip documents
are available and recommended as supplemental reference resources.
• UCS2112 Data Sheet - “USB Dual-Port Power Switch and Current Monitor”
(DS20005424)
• USB84604 Data Sheet - “USB 2.0 HSIC Hi-Speed 4-Port Controller Hub”
(DS60001295)
• MCP19118/19 Data Sheet - “Digitally-Enhanced Power Analog Controller
with Integrated Synchronous Driver” (DS20005350)
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 (October 2015)
• Initial Release of this Document.

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UCS2112 DUAL USB PORT POWER
EVALUATION BOARD USER’S GUIDE
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Chapter 1. Product Overview
1.1 INTRODUCTION
This document provides a description of the software and hardware used to evaluate
the features of the UCS2112.
The UCS2112 Dual USB Port Power Evaluation Board demonstrates the features of
two USB ports, capable of data transferring and charging up to 6A. Charging limits,
accumulated current, alerts and attachment status can all be configured, exercised
and/or observed on a graphical user interface.
1.2 UCS2112 EVALUATION SYSTEM
The evaluation system has several components, as shown in Figure 1-1.
• Customer-provided Windows®PC
• UCS2112 Demo Software (Graphical User Interface - GUI)
• UCS2112 Dual USB Port Power Evaluation Board
• USB Cable for GUI communications (Standard-A plug to mini-B plug)
• 12V DC power source
• Customer-provided portable device and OEM USB charging cable (with
Standard-A plug at board’s end)
FIGURE 1-1: UCS2112 Evaluation System.
12V DC
power supply
PC running the UCS2112
Demo Software
Portable Device
Portable Device

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A block diagram of the UCS2112 Dual USB Port Power Evaluation Board is shown in
Figure 1-2 below:
FIGURE 1-2: UCS2112 Dual USB Port Power Evaluation Board Block Diagram.
1.3 WHAT THE UCS2112 DUAL USB PORT POWER EVALUATION BOARD KIT
CONTAINS
This UCS2112 Dual USB Port Power Evaluation Board kit includes:
• UCS2112 Dual USB Port Power Evaluation Board (ADM00639)
• 12V AC-DC Wall Adapter
• Standard-A plug to mini-B plug USB Cable
• Important Information Sheet
Power Input
UCS2112
USB STD-A
RECPT
(To Portable
Device)
USB84604
Hub
USB MINI-B
RECPT
DC-DC Converter
MCP19118
USB STD-A
RECPT
(To Portable
Device)
USB Downstream Port 1
USB Downstream Port 2
SMBus
12V
5V
VBus1
VBus2
USB Upstream
Port

UCS2112 DUAL USB PORT POWER
EVALUATION BOARD USER’S GUIDE
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Chapter 2. Installation and Operation
2.1 INTRODUCTION
This chapter identifies the main connectors, LEDs and test points that can be found on
the UCS2112 Dual USB Port Power Evaluation Board. It also explains the steps to
install the board’s graphical user interface.
2.2 CONNECTORS ON THE EVALUATION BOARD
Figure 2-1 shows the top of the evaluation board and highlights the connectors.
FIGURE 2-1: UCS2112 Dual USB Port Power Evaluation Board Top View - Connectors.
J1
Jack connector to the
12V AC-DC adapter
J3
Header connected to I2C lines
of the MCP19118
J2
ICD Programming header
for MCP19118
J4
USB Mini-B Receptacle to PC
J6 (Port 2)
USB Standard A
receptacle
to portable device
J5 (Port1)
USB Standard A
receptacle
to portable device

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2.3 LEDS ON THE EVALUATION BOARD
Figure 2-2 shows the top of the evaluation board and highlights the LEDs.
FIGURE 2-2: Evaluation Board Top View - LEDs.
LD1
12V voltage indicator LD2
5V voltage
indicator
LD7
ALERT#2
pin state indicator
LD5
A_DET#1
pin state indicator
LD6
ALERT#1
pin state indicator
LD8
A_DET#2
pin state indicator
LD3
Hub VBAT voltage indicator

Installation and Operation
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2.4 TEST POINTS ON THE EVALUATION BOARD
Figure 2-3 shows the top of the board and highlights the test points.
FIGURE 2-3: Evaluation Board Top View - Test Points.
TP6 (GND)
For monitoring
12V supply voltage
TP8 (GND)
For monitoring 5V output
from the DC-DC converter
TP2
For monitoring
USB84604 V
DD
3.3V
supply voltage
TP3
For monitoring
USB84604 V
BAT
supply voltage
TP4 (SDA)
For monitoring
I
2
C communication
between the
USB84604 and the UCS2112
TP1 (12V)
For monitoring
12V supply voltage
TP7 (5V)
For monitoring 5V output
from the DC-DC converter
TP5 (SCL)
For monitoring
I
2
C communication
between the
USB84604 and the UCS2112

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2.5 SOFTWARE INSTALLATION
To begin using the UCS2112 Dual USB Port Power Evaluation Board, a software must
be installed on a Windows®-based computer with a USB port.
1. Download the UCS2112 Demo Software archive from the UCS2112 Dual USB
Port Power Evaluation Board’s web page, unzip, then double-click the
executable file to start the installation. Figure Figure 2-4 shows the initial
installation screen.
FIGURE 2-4: Setup Wizard.
2. Read and accept the license agreement, then click Next.
FIGURE 2-5: Software License Agreement.

Installation and Operation
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3. Click the browse icon to specify the directory where the UCS2112
Demo Software will be installed, then click Next.
FIGURE 2-6: Installation Directory.
4. Click Next in the Ready to Install window to begin the software installation. The
progress can be observed in the progress bar (see Figure 2-8).
FIGURE 2-7: Ready to Install.

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5. Duringinstallation,asecurity pop-upwindow,requestingapproval,willappear on
screen. Click Install to proceed with the installation
FIGURE 2-8: Installing the GUI.

Installation and Operation
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FIGURE 2-9: The Installation Complete Window.
Once the installation completes, the View Release Notes File box remains checked to
display information about the current software version. To skip release notes, deselect
this check box. Click Finish to end the installation.
To launch the GUI, either click on the desktop icon or browse to
Windows Start>All Programs>Microchip>UCS2112 Demo Software.

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NOTES: