ISP1521, hub controller, USB, universal serial bus
This document describes the ISP1521 hub demo board. It also contains
the related schematics, the PCB layout, and the Bill of Material
.
Philips Semiconductors
ISP1521 Hi-Speed USB Hub Demo Board
UM10011_4
Revision history
Rev Date Description
4.0 June 2004 Updated the schematics.
3.0 Apr 2004 Updated the following:
• Section 2
• Section 5.7
• Removed Section 5.8 on hybrid power
• Section 6.
1.1 Mar 2003 Updated Section 5.7 and Section 6.
Corrected I
1.0 Nov. 2002 First release.
2
C to I2C-Bus
Contact information
For additional information, please visit: http://www.semiconductors.philips.com/
For sales office addresses, please send an email to: sales.addresses@www.semiconductors.philips.com
This is a legal agreement between you (either an individual or an entity) and Philips Semiconductors. By accepting
this product, you indicate your agreement to the disclaimer specified as follows:
ISP1521 Hi-Speed USB Hub Demo Board
UM10011_4
DISCLAIMER
PRODUCT IS DEEMED ACCEPTED BY RECIPIENT. THE PRODUCT IS PROVIDED “AS IS” WITHOUT
WARRANTY OF ANY KIND. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, PHILIPS
SEMICONDUCTORS FURTHER DISCLAIMS ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANT ABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
NONINFRINGEMENT. THE ENTIRE RISK ARISING OUT OF THE USE OR PERFORMANCE OF THE
PRODUCT AND DOCUMENTATION REMAINS WITH THE RECIPIENT. TO THE MAXIMUM EXTENT
PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL PHILIPS SEMICONDUCTORS OR ITS SUPPLIERS BE
LIABLE FOR ANY CONSEQUENTIAL, INCIDENTAL, DIRECT, INDIRECT, SPECIAL, PUNITIVE, OR OTHER
DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS
PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS)
ARISING OUT OF THIS AGREEMENT OR THE USE OF OR INABILITY TO USE THE PRODUCT, EVEN IF
PHILIPS SEMICONDUCTORS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
3. SYSTEM REQUIREMENTS.....................................................................................................................................................6
4. POWER SUPPLY ADAPTER REQUIREMENTS................................................................................................................6
5.2. Port Indicators..................................................................................................................................................................7
5.3. Power LED Indicator ......................................................................................................................................................7
5.5. Port Power Switch Transistors.....................................................................................................................................8
5.7. Power Supply....................................................................................................................................................................8
5.9. Other Jumpers................................................................................................................................................................11
7. INSTALLING THE BOARD.................................................................................................................................................19
8. BILL OF MATERIALS FOR THE ISP1521 HU B DEMO BOARD.................................................................................20
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 b e the trademarks of their
respective owners. All other names, products, and trademarks are the property of their respectiv e owners.
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).
UM10011_4
ISP1521 Hi-Speed USB Hub Demo Board
Figure 1-1: ISP1521 Hub Demo Board
2. ISP1521 Hub Demo Board Features
• 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
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
98
• 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 hu b.
4. Power Supply Adapter Requirements
Regulated Output: 5.1 VCC ± 5%, 4 A.
Warning: The power plug polarity is (-) at the core and (+) at the outer shield.
UM10011_4
ISP1521 Hi-Speed USB Hub Demo Board
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 possib le 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
J2, J1 J4, J3 J6, J5 J10, J9 J8, J7 Active Ports
OFF, OFF OFF, OFF OFF, OFF OFF, OFF OFF, OFF USB1 to USB7*
ON, ON OFF, OFF OFF, OFF OFF, OFF OFF, OFF USB1 to USB6
OFF, OFF ON, ON OFF, OFF OFF, OFF OFF, OFF USB1 to USB5
OFF, OFF OFF, OFF ON, ON OFF, OFF OFF, OFF USB1 to USB4
OFF, OFF OFF, OFF OFF, OFF ON, ON OFF, OFF USB1 to USB3
OFF, OFF OFF, OFF OFF, OFF OFF, OFF ON, ON USB1 to USB2
*—Default settings.
These jumpers are set to “ON” by placing a solder joint on the provided footprints.