Philips UM10011 ユーザーズマニュアル

Philips Semiconductors

UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

User manual

Rev. 04.00 — 17 June 2004

6 of 20

3. System Requirements

This hub can be attached to a computer that has a USB or Hi-Speed USB host installed, and
running any of these operating systems:

• Windows

•  Windows Me
•  Windows 2000
•  Windows XP
•  MacOS

If the hub is plugged into a USB host controller, it will work only as a full-speed hub.

4. Power Supply Adapter Requirements

Regulated Output:

5.1 V

± 5%, 4 A.

Warning: The power plug polarity is (-) at the core and (+) at the outer shield.

5. Hub Demo Board Description

5.1. ISP1521 80-Pin LQFP Package

The ISP1521 has these port configurations:

• One Hi-Speed USB and USB capable upstream facing port (USB0), and
• Seven Hi-Speed USB and USB capable downstream facing ports (USB1, USB2, USB3, USB4,

USB5, USB6, USB7).

The port numbers are marked near the USB connectors on the silkscreen. The downstream

facing ports USB3, USB4, USB5, USB6 and USB7 can be disabled. Disabling a port will also disable
all higher-number ports. For example, disabling port USB4 will disable ports USB5, USB6 and
USB7 as well. Therefore, apart from port USB7, it is not possible to selectively disable a port

(For example, only USB5.). By design, ports USB1 and USB2 cannot be disabled.

Table 5-1: Jumper Settings vs. Port Activation

*—Default settings.

These jumpers are set to “ON” by placing a solder joint on the provided footprints.

J2, J1

J4, J3

J6, J5

J10, J9

J8, J7

Active Ports

OFF, OFF

USB1 to USB7*

ON, ON

OFF, OFF

USB1 to USB6

OFF, OFF

ON, ON

OFF, OFF

USB1 to USB5

OFF, OFF

ON, ON

OFF, OFF

USB1 to USB4

OFF, OFF

ON, ON

OFF, OFF

USB1 to USB3

OFF, OFF

ON, ON

USB1 to USB2