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.