Cypress’s EZ-USB FX2 is the world’s first USB 2.0 integrated microcontroller. By integrating the USB 2.0 transceiver, SIE, enhanced 8051 microcontroller, and a programmable peripheral interface in a single chip, Cypress has created a very cost-effective solution that provides superior time-to-market advantages. The ingenious architecture of FX2 results in data transfer rates of 56 Mbytes per second, the maximum allowable USB 2.0 bandwidth, while still using a low cost 8051 microcontroller in a package as small as a 56 SSOP. Because it incorporates the USB 2.0 transceiver, the FX2 is more economical, providing a smaller footprint solution than USB 2.0 SIE or external transceiver implementations. With EZ-USB FX2, the Cypress Smart SIE handles most of the USB 1.1 and 2.0 protocol in hardware, freeing the embedded micro controller for application-specific functions and decreasing development time to ensure USB compatibility. The General Programmable Interface (GPIF) and Master/Slave Endpoint FIFO (8- or 16-bit data bus) provides an easy and glueless interface to popular interfaces such as ATA, UTOPIA, EPP, PCMCIA, and most DSP/processors.

EZ-USB FX2™ Features
• Single-chip integrated USB 2.0 Transceiver, SIE, and Enhanced 8051 Microprocessor
• Software: 8051 code runs from:
   — Internal RAM, which is downloaded via USB
   — Internal RAM, which is loaded from EEPROM
   — External memory device (128 pin package
• Four programmable BULK/INTERRUPT/ISOCHRONOUS endpoints
   — Buffering options: double, triple and quad
• 8- or 16-bit external data interface
• GPIF
   — Allows direct connection to most parallel interface
   — Programmable waveform descriptors and configuration registers to define waveforms
   — Supports multiple Ready (RDY) inputs and Control (CTL) outputs
• Integrated, industry standard enhanced 8051:
   — Up to 48-MHz clock rate
   — Four clocks per instruction cycle
   — Two USARTS
   — Three counter/timers
   — Expanded interrupt system
   — Two data pointers
• Supports bus-powered applications by using renumeration
• 3.3V operation
• Smart Serial Interface Engine
• Vectored USB interrupts
• Separate data buffers for the SETUP and DATA portions of a CONTROL transfer
• Integrated I2C-compatible controller, runs at 100 or 400 kHz
• 48-MHz, 24-MHz, or 12-MHz 8051 operation
• Four integrated FIFOs
   — Brings glue and FIFOs inside for lower system cost
   — Automatic conversion to and from 16-bit buses
   — Master or slave operation
   — FIFOs can use externally supplied clock or asyn chronous strobes
   — Easy interface to ASIC and DSP ICs
• Special autovectors for FIFO and GPIF interrupts
• Up to 40 general-purpose I/Os
• Four package options—128-pin TQFP, 100-pin TQFP, 56-pin QFN and 56-pin SSOP
• Four packages are defined for the family: 56 SSOP, 56 QFN, 100 TQFP, and 128 TQFP

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