Introduction
The EZ-USB SX2™ USB interface device is designed to work with any external master, such as standard microprocessors, DSPs, ASICs, and FPGAs to enable USB 2.0 support for any peripheral design. SX2 has a built-in USB transceiver and Serial Interface Engine (SIE), along with a command decoder for sending and receiving USB data. The controller has four endpoints that share a 4-KB FIFO space for maximum flexibility and throughput, as well as Control Endpoint 0. SX2 has three address pins and a selectable 8- or 16- bit data bus for command and data input or output.

EZ-USB SX2™ Features
• USB 2.0-certified compliant
   — On the USB-IF Integrators List: Test ID Number 40000713
• Operates at high (480 Mbps) or full (12 Mbps) speed
• Supports Control Endpoint 0:
   — Used for handling USB device requests
• Supports four configurable endpoints that share a 4- KB FIFO space
   — Endpoints 2, 4, 6, 8 for application-specific control and data
• Standard 8- or 16-bit external master interface
   — Glueless interface to most standard microproces sors DSPs, ASICs, and FPGAs
   — Synchronous or Asynchronous interface
• Integrated phase-locked loop (PLL)
• 3.3V operation, 5V tolerant I/Os
• 56-pin SSOP and QFN package
• Complies with most device class specifications

APPLICATIONs
• DSL modems
• ATA interface
• Memory card readers
• Legacy conversion devices
• Cameras
• Scanners
• Home PNA
• Wireless LAN
• MP3 players
• Networking
• Printers