Philips Semiconductors ISP1520

Hi-Speed USB hub controller
Product data Rev. 03 — 24 November 2004 2 of 51
9397 750 13701 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
2. Features
Complies with:

Universal Serial Bus Specification Rev.2.0

Advanced Configuration and Power Interface (ACPI™), OnNow™ and USB
power management requirements.
Supports data transfer at high-speed (480 Mbit/s), full-speed (12 Mbit/s) and
low-speed (1.5 Mbit/s)
Self-powered capability
USB suspend mode support
Configurable number of ports
Internal power-on reset and low voltage reset circuit
Port status indicators
Integrates high performance USB interface devicewith hub handler, Philips Serial
Interface Engine (SIE) and transceivers
Built-in overcurrent detection circuit
Individual or ganged power switching, individual or global overcurrent protection,
and non-removable port support by I/O pins configuration
Simple I2C-bus (master/slave) interface to read device descriptor parameters,
language ID, manufacturerID, product ID, serial number ID and string descriptors
from a dedicated external EEPROM, or to allow the microcontroller to set up hub
descriptors
Visual USB traffic monitoring (GoodLink™) for the upstream facing port
Uses 12 MHz crystal oscillator with on-chip Phase-Locked Loop (PLL) for low
ElectroMagnetic Interference (EMI)
Supports temperature range from 40 °Cto+70°C
Available in LQFP64 package.
3. Applications
Monitor hubs
Docking stations for notebooks
Internal hub for USB motherboards
Hub for extending Easy PCs
Hub boxes.