Philips UM10011 user manual Contents, Philips Semiconductors, ISP1521 Hi-SpeedUSB Hub Demo Board

Philips Semiconductors				UM10011_4
				ISP1521 Hi-Speed USB Hub Demo Board
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.		I2C-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 I2C-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.

		© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
User manual	Rev. 04.00 — 17 June 2004	4 of 20