USB3503 Evaluation Board Manual
SMSC USB3503 EVB
2
Revision 1.0 (08-22-11)
USER MANUAL
1 Introduction
This user manual is for the USB3503 Evaluation board. This board can be used to test and evaluate
the functionality of the USB3503 and is ideal for early system integration and software development.
The USB3503 EVB provides access to the HSIC upstream and USB downstream ports, as well as the
I
2
C communication pins.
SMSC also has evaluation software that can be used with the USB3503 EVB connected to a Total
Phase Aardvark adaptor. This software allows the user to configure the USB3503 in different ways
before enumeration as well as monitor and manipulate 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 USB3503 EVB includes the basic equipment necessary to evaluate the USB3503. The items
included in the kit are:
1. USB3503 EVB
2. 5V DC Power Supply
3. Documentation and Software CD
The kit does
not
include any downstream USB devices, I
2
C master hardware, or other components
for board customization.
2.2
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 the 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 Datasheet.
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 downsteam device.
Refer to the next chapters to see the customization options associated with the evaluation kit.
3 Hardware
The USB3503 EVB is a board that demonstrates the capabilities of the USB3503. The board consists
of the HSIC upstream and USB downstream ports, a INT_N LED for visual confirmation of the
