USB2227_06 Datasheet, PDF (1/27 Pages) SMSC Corporation – 4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs

USB2227/USB2228
4th Generation USB2.0
Flash Media Controller
with Integrated Card
Power FETs
PRODUCT FEATURES
„ Complete System Solution for interfacing SmartMedia^TM
(SM) or xD Picture Card^TM (xD)¹, Memory Stick^TM (MS),
High Speed Memory Stick (HSMS), Memory Stick PRO
(MSPRO), MS Duo^TM, Secure Digital (SD), Mini-Secure
Digital (Mini-SD), TransFlash (SD), MultiMediaCard^TM
(MMC), Reduced Size MultiMediaCard (RS-MMC), NAND
Flash, Compact Flash^TM (CF) and CF Ultra^TM I & II, and CF
form-factor ATA hard drives to USB2.0 bus
— Supports USB Bulk Only Mass Storage Compliant
Bootable BIOS
„ Support for simultaneous operation of all above devices.
(only one at a time of each of the following groups
supported: CF or ATA drive, SM or XD or NAND, SD or
MMC)
„ On-Chip 4-Bit High Speed Memory Stick and MS PRO
Hardware Circuitry
„ On-Chip firmware reads and writes High Speed Memory
Stick and MS PRO
„ 1-bit ECC correction performed in hardware for maximum
efficiency
„ Hardware support for SD Security Command Extensions
„ On-chip power FETs for supplying flash media card power
with minimum board components
„ USB Bus Power Certified
„ 3.3 Volt I/O with 5V input tolerance on VBUS/GPIO3
„ Complete USB Specification 2.0 Compatibility for Bus
Powered Operation
— Includes USB2.0 Transceiver
— A Bi-directional Control and a Bi-directional Bulk
Endpoint are provided.
„ 8051 8 bit microprocessor
— Provides low speed control functions
— 30 Mhz execution speed at 4 cycles per instruction
average
— 12K Bytes of internal SRAM for general purpose
scratchpad
— 768 Bytes of internal SRAM for general purpose
scratchpad or program execution while re-flashing
external ROM
„ Double Buffered Bulk Endpoint
— Bi-directional 512 Byte Buffer for Bulk Endpoint
— 64 Byte RX Control Endpoint Buffer
— 64 Byte TX Control Endpoint Buffer
Datasheet
„ Internal or External Program Memory Interface
— 64K Byte Internal Code Space or Optional 64K Byte
External Code Space using Flash, SRAM or EPROM
memory.
„ On Board 24Mhz Crystal Driver Circuit
„ Can be clocked by 48MHz external source
„ On-Chip 1.8V Regulator for Low Power Core Operation
„ Internal PLL for 480Mhz USB2.0 Sampling, Configurable
MCU clock
„ Supports firmware upgrade via USB bus if “boot block”
Flash program memory is used
„ 15 GPIOs for special function use: LED indicators, button
inputs, power control to memory devices, etc.
— Inputs capable of generating interrupts with either edge
sensitivity
— Attribute bit controlled features:
— Activity LED polarity/operation/blink rate
— Full or Partial Card compliance checking
— Bus or Self Powered
— LUN configuration and assignment
— Write Protect Polarity
— SmartDetach™ Detach from USB when no Card
Inserted for Notebook apps
— Cover Switch operation for xD compliance
— Inquiry Command operation
— SD Write Protect operation
— Older CF card support
— Force USB 1.1 reporting
— Internal or External Power FET operation
„ Compatible with Microsoft WinXP, WinME, Win2K SP3,
Apple OS10, Softconnex, and Linux Multi-LUN Mass
Storage Class Drivers
„ Win2K, Win98/98SE and Apple OS8.6 and OS9 Multi-LUN
Mass Storage Class Drivers available from SMSC
„ 128 Pin VTQFP Lead-free RoHS Compliant Package
(1.0mm height, 14mm x14mm footprint)
„ 124 Pin DQFN Lead-free RoHS Compliant Package (0.8mm
height, 10mm x10mm footprint)
1.xD Picture Card not applicable to USB2227
SMSC USB2227/USB2228
DATASHEET
Revision 1.91 (10-13-06)