FX to FX2: A Comparison

Agenda Block diagram Evolution Hardware Firmware Wrap-up

Address (16) 8051 Core 24/48 MHz, 4 clocks/cycle CY Smart USB Engine 12 MHz XTAL I/O Ports (40) 4 KB / 8KB RAM Address (16) / Data Bus (8) X4 PLL I 2 C Compatible Four 64 bytes FIFO 8/16 bits Data(8) DMA Engine EZ-USBFX USB 1.1 XCVR D+ D- Uses Low-Cost Crystal High Performance Micro Using Standard Tools Memory Expansion or Data Buffer Ports Peripheral I/O Flexibility 1K Double-Buffer Isochronous Support "Soft Configuration” Easy Firmware Changes Enhanced USB Core Simplifies 8051 Code Master or Slave Operation Abundant I/O Including 2 UARTS Up to 48 MBytes/s Burst Rates GPIF General Programmable I/F to any ASIC/DSP or bus standards such as ATAPI, EPP, etc. 2 KB FIFO EZ-USB FX Block Diagram

EZ-USB FX2 Block Diagram 24 MHz XTAL Uses Low-Cost Crystal High Performance Micro Using standard tools with low power options Memory Expansion or Data Buffer Ports Peripheral I/O Flexibility "Soft Configuration” Easy Firmware Changes Enhanced USB Core Simplifies 8051 Code FIFO and Endpoint Memory (Master or Slave Operation) Abundant I/O Including 2 UARTS General Programmable Interface to any ASIC/DSP or bus standards such as ATAPI, EPP, etc Core 12/24/48 MHz 4 clocks/cycle CY Smart USB Engine 8.5kB RAM Address (16) / Data Bus (8) X20 PLL 4kB FIFO EZ-USBFX2 USB 2.0 XCVR D+ D- GPIF ADDR (9) connect for full speed 1.5k Vcc I 2 C - Compatible Master /0.5 /1.0 /2.0 Additional I/Os (24) Data (8) Address (16) RDY (6) CTL (6) 8/16

EZ-USB FX2 Architectural Evolution Endpoint FIFOS Microprocessor Outside World (a) USB 1.1 Full Speed USB EZ-USB Endpoint FIFOS Microprocessor (c) USB 2.0--no time wasted transferring data between FIFOS Outside World USB RAM/FIFO access (36 kilobits) EZ-USB FX2 Endpoint FIFOS USB Microprocessor DMA Interface FIFO (b) USB 1.1 Full Speed Outside World RAM/FIFO access (24 kilobits)(2 kilobits) EZ-USB FX control

FX to FX2 Hardware - General Not pin compatible Internal resistor for DISCON pin Programmable WAKEUP with multiple sources Firmware SUSPEND Finally 115k and 230k baud internally with dedicated pins

FX vs. FX2 Hardware - General

FX to FX2 Hardware - Slave FIFOs Dedicated PKTEND pin More flags with more programmable flexibility Two address pins to select 1 of 4 FIFOs Same flexible programmable polarity for control pins

FX vs. FX2 Hardware - Slave FIFOs

FX to FX2 Hardware - GPIF GPIF sampling or sync clock either 30 or 48 MHz More address lines (9 vs. 6) GPIF signals are not muxed with GPIO signals

FX vs. FX2 Hardware - GPIF

FX vs. FX2 Hardware - I/F Clocking CLKOUT either 12, 24, or 48 MHz IFCLK can either be an input or an output

FX vs. FX2 Hardware - DK CPLD instead of 22V10 Same BRKPT LED plus four additional LED’s Switch selectable EEPROM size

FX to FX2 Firmware - USB Endpoint size and buffering is programmable Auto In/Out to take 8051 out of data path No separate ISO buffers Can turn off SOF generation Better setup data pointer No more busy bits From 16 endpoints to 7

FX vs. FX2 Firmware - USB

FX vs. FX2 Firmware - Slave FIFOs FIFOs individually selectable 8/16 wide FIFO empty + 1 and full -1 flags FIFO status registers in SFR space

FX vs. FX2 Firmware - GPIF New GPIF long transfer mode Can now check all flags in decision point GPIF trigger now in SFR space

FX to FX2 Firmware Full 8k of internal memory for code & xdata More registers in SFR space I/O ports in SFR space only 8051 clock rate either 12, 24, or 48 MHz No more DMA Two autopointers

FX vs. FX2 Firmware