Introduction; Isp1521 Hub Demo Board Features - Philips UM10011 User Manual

Philips Semiconductors

1. Introduction

The ISP1521 is a Hi-Speed Universal Serial Bus (USB) hub IC, with seven downstream facing
ports. The ISP1521 Hub Demo Board is designed to demonstrate the features and functionality
of the ISP1521.
This document describes the ISP1521 Hub Demo Board. It also contains the related schematics,
the PCB layout, and the Bill of Material (BoM).

2. ISP1521 Hub Demo Board Features

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User manual
Figure 1-1: ISP1521 Hub Demo Board
Complies with Universal Serial Bus Specification Rev. 2.0
Supports self-powered operation
Configurable number of downstream facing ports (from two to seven)
Customizable Vendor ID, Product ID and Serial Number (by using an external EEPROM or
an external microcontroller)
Individual power switching and individual overcurrent protection
USB traffic indication (GoodLink
Port status indicators.
Rev. 04.00 — 17 June 2004
ISP1521 Hi-Speed USB Hub Demo Board
TM LED) on the upstream facing port
UM10011_4
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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