Philips Semiconductors
UM10011_4
ISP1521 Hi-Speed USB Hub Demo Board
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
User manual
Rev. 04.00 — 17 June 2004
4 of 20
Contents
1.
INTRODUCTION ................................................................................................................................................................... 5
2.
ISP1521 HUB DEMO BOARD FEATURES......................................................................................................................... 5
3.
SYSTEM REQUIREMENTS ..................................................................................................................................................... 6
4.
POWER SUPPLY ADAPTER REQUIREMENTS ................................................................................................................ 6
5.
HUB DEMO BOARD DESCRIPTION................................................................................................................................. 6
5.1.
ISP1521 80-Pin LQFP Package....................................................................................................................................... 6
5.2.
Port Indicators.................................................................................................................................................................. 7
5.3.
Power LED Indicator ...................................................................................................................................................... 7
5.4.
GoodLink Indicator ......................................................................................................................................................... 7
5.5.
Port Power Switch Transistors..................................................................................................................................... 8
5.6.
Overcurrent Circuit Detection .................................................................................................................................... 8
5.7.
Power Supply.................................................................................................................................................................... 8
5.8.
I
2
C-Bus Interface ............................................................................................................................................................10
5.9.
Other Jumpers................................................................................................................................................................11
5.9.1.
J13 (NOOC) ..........................................................................................................................................................11
5.9.2.
J14 (SUSPEND)......................................................................................................................................................11
6.
SCHEMATICS..........................................................................................................................................................................11
7.
INSTALLING THE BOARD .................................................................................................................................................19
8.
BILL OF MATERIALS FOR THE ISP1521 HUB DEMO BOARD .................................................................................20
9.
REFERENCES...........................................................................................................................................................................20
GoodLink and I
2
C-Bus are trademarks of Koninklijke Philips Electronics N.V. Microsoft is a registered trademark of
Microsoft Corp. The names of actual companies and products mentioned herein may be the trademarks of their
respective owners. All other names, products, and trademarks are the property of their respective owners.
