Philips UM10011 Bedienungsanleitung

UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

Semiconductors Rev. 04.00 — 17 June 2004 User manual

Document information

Info Content

Keywords ISP1521, hub controller, USB, universal serial bus

Abstract This document describes the ISP1521 hub demo board. It also contains

the related schematics, the PCB layout, and the Bill of Material.

Philips Semiconductors UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

User manual Rev. 04.00 — 17 June 2004 2 of 20

Revision history

Contact information

For additional information, please visit: http://www.semiconductors.philips.com/

For sales office addresses, please send an email to: [email protected]

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 I2C to I2C-Bus

1.0 Nov. 2002 First release.

Philips Semiconductors UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

User manual Rev. 04.00 — 17 June 2004 3 of 20

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:

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.

Philips Semiconductors UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

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. 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.

Philips Semiconductors UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

User manual Rev. 04.00 — 17 June 2004 5 of 20

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).

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

• USB traffic indication (GoodLinkTM LED) on the upstream facing port

• Port status indicators.

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®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 hub.

4. Power SupplyAdapter Requirements

Regulated Output: 5.1 VCC ± 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 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

Philips Semiconductors UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

User manual Rev. 04.00 — 17 June 2004 7 of 20

5.2. Port Indicators

The D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13 and D14 are port indicators.

Conforming to the Universal Serial Bus Specification Rev. 2.0, each downstream facing port has two

port indicators—green and amber—placed to its right.

If the green LED is ON, it means the device connected to the port was successfully enumerated

and is functional.

If the amber LED is ON, it means there is an overcurrent condition.

Custom software applications or drivers may flash these LEDs to attract user attention.

5.3. Power LED Indicator

When power is supplied to the board, LED D16 lights up (red).

5.4. GoodLink Indicator

A Philips GoodLinkTM LED D15 (red) is located near the upstream facing port. This LED blinks on

every successful USB transactions.

1 and J2 solder

joints to disable a

port

Philips Semiconductors UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

User manual Rev. 04.00 — 17 June 2004 8 of 20

5.5. Port Power Switch Transistors

The hub switches on or off the bus power to each downstream facing port through a low ohmic

PMOS transistor.

5.6. Overcurrent Circuit Detection

The integrated analog overcurrent detection circuit of the ISP1521 senses the voltage drop

across the power switch. When the port draws too much current, the voltage drop across the

power switch exceeds the trip voltage threshold. The overcurrent circuit detects this and

automatically switches off the power switch. More information on choosing the switch and

trimming the overcurrent detection voltage can be found in the ISP1521 Hi-Speed Universal Serial

Bus hub controller data sheet.

5.7. Power Supply

To power up the hub, plug the power supply into the power supply socket (PWR_C1).

Jumper J15 will set the powering mode in the hub’s descriptors as self-powered hub; see

Table 5-2.

Table 5-2: Setting the Power Mode Using J15

*—Default settings.

J15 Power Mode Logic State

OFF Self* 1 (HIGH)

J15

Philips Semiconductors UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

User manual Rev. 04.00 — 17 June 2004 9 of 20

Figure 5-1: Windows Reporting of the Bus-Powered Mode

Philips Semiconductors UM10011_4

ISP1521 Hi-Speed USB Hub Demo Board

User manual Rev. 04.00 — 17 June 2004 10 of 20

Figure 5-2: Windows Reporting of the Self-Powered Mode

5.8. I2C-Bus Interface

The ISP1521 can use either its USB descriptors from the internal ROM, or from an external I2C-

BusTM EEPROM or microcontroller. Mode selection is done through jumpers J11and J12 (see

Table 5-3).

Table 5-3: Mode Selection Using J11 and J12

*—Default settings.

An external I2C-Bus controller acting as a master can also be used to update hub descriptors

through the CN1 connector.

Note: The I2C-Bus external EEPROM cannot be programmed on-board.

J11 J12 Mode SCL SDA

ON ON Internal ROM LOW LOW

OFF OFF I2C-Bus EEPROM* HIGH HIGH

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