Hub/Switch Model Number: UM10011

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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

Summary of content (20 pages)

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UM10011_4 ISP1521 Hi-Speed USB Hub Demo Board Semiconductors Rev. 04.00 — 17 June 2004 User manual Document information Info Keywords Abstract Content 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.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board Revision history Rev 4.0 3.0 Date June 2004 Apr 2004 1.1 Mar 2003 1.0 Nov. 2002 Description Updated the schematics. Updated the following: • Section 2 • Section 5.7 • Removed Section 5.8 on hybrid power • Section 6. Updated Section 5.7 and Section 6. 2 2 Corrected I C to I C-Bus First release. Contact information For additional information, please visit: http://www.semiconductors.philips.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board 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.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board Contents 1. INTRODUCTION ................................................................................................................................................................... 5 2. ISP1521 HUB DEMO BOARD FEATURES ......................................................................................................................... 5 3. SYSTEM REQUIREMENTS ..............................................................
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board 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.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board 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 Supply Adapter Requirements Regulated Output: 5.1 VCC ± 5%, 4 A.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board J1 and J2 solder joints to disable a port 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.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board 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.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board Figure 5-1: Windows Reporting of the Bus-Powered Mode © Koninklijke Philips Electronics N.V. 2004. All rights reserved. User manual Rev. 04.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board 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 I2CBusTM EEPROM or microcontroller. Mode selection is done through jumpers J11and J12 (see Table 5-3). Table 5-3: Mode Selection Using J11 and J12 J11 ON OFF *—Default settings.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board 5.9. Other Jumpers 5.9.1. J13 (NOOC) This jumper will set the OC capabilities in the hub’s descriptors (see Table 5-4). Table 5-4: Overcurrent Support Selection Using J11 and J12 J13 NOOC OFF No overcurrent support ON Overcurrent support* *—Default settings. Logic State 1 (HIGH) 0 (LOW) Note: this jumper is for setting the hub’s descriptor only. To inhibit the overcurrent detection, the OC pins must be tied to VCC (5 V) 5.9.2.
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D C B 1 VBUS 5K6 RVbus 2 Qrpu NPN V3.3REG VCC5 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R40 V3.
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D C B A 1 PSW7 PSW6 PSW5 PSW4 PSW3 PSW2 PSW1 VCC5 47K R100 C58 0.1uF 47K R99 C57 0.1uF 47K R98 C56 0.1uF 47K R97 C55 0.1uF 47K R70 C54 0.1uF 47K R69 C53 0.1uF 47K R68 C52 0.1uF 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 Q7 NDS9435A 8 7 6 5 Q6 NDS9435A 8 7 6 5 Q5 NDS9435A 8 7 6 5 Q4 NDS9435A 8 7 6 5 Q3 NDS9435A 8 7 6 5 Q2 NDS9435A 8 7 6 5 Q1 NDS9435A 8 7 6 5 10K R27 10K R26 10K R25 10K R24 10K R23 10K R22 10K R21 C13 0.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board 7. Installing the Board Assuming that you have already installed the USB host adapter (including drivers) on a computer running Windows, installing the hub is fairly simple. 1. Plug in power from the power supply to the hub. The power supply must meet the requirements specified in Section 4. 2. Plug a USB cable in the USB0 port, and connect the other end of the cable to the USB host.
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UM10011_4 Philips Semiconductors ISP1521 Hi-Speed USB Hub Demo Board 8. Bill of Materials for the ISP1521 Hub Demo Board Part Type 0.01 F 0.1 F Footprint 0603C 0603C Quantity 8 32 0Ώ 0Ώ 0Ώ 100 F/10 V 10 kΏ 10 F/10 V 10 F 12 kΏ, 1% 12 MHz, low profile 150 F/10 V 15 kΏ 0603R 0805GR 1206G REC2-25 0603R REC1-2 REC1-2 0603R XTAL7 REC15-3 0603R 1 1 2 1 11 1 1 1 1 7 1.5 kΏ, 1% 1N4148 1 nF 22 pF 2.2 kΏ 330 Ώ 0603R DIODE0.