USB2228 SMSC Corporation, USB2228 Datasheet
USB2228
Manufacturer Part Number
USB2228
Description
(USB2227 / USB2228) 4th Generation USB2.0 Flash Media Controller
Manufacturer
SMSC Corporation
Datasheet
1.USB2228.pdf
(27 pages)
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INTEL
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PRODUCT FEATURES
SMSC USB2227/USB2228
Complete System Solution for interfacing SmartMedia
Support for simultaneous operation of all above devices.
On-Chip 4-Bit High Speed Memory Stick and MS PRO
On-Chip firmware reads and writes High Speed Memory
1-bit ECC correction performed in hardware for maximum
Hardware support for SD Security Command Extensions
On-chip power FETs for supplying flash media card power
USB Bus Power Certified
3.3 Volt I/O with 5V input tolerance on VBUS/GPIO3
Complete USB Specification 2.0 Compatibility for Bus
8051 8 bit microprocessor
Double Buffered Bulk Endpoint
(SM) or xD Picture Card
High Speed Memory Stick (HSMS), Memory Stick PRO
(MSPRO), MS Duo
Digital (Mini-SD), TransFlash (SD), MultiMediaCard
(MMC), Reduced Size MultiMediaCard (RS-MMC), NAND
Flash, Compact Flash
form-factor ATA hard drives to USB2.0 bus
— Supports USB Bulk Only Mass Storage Compliant
(only one at a time of each of the following groups
supported: CF or ATA drive, SM or XD or NAND, SD or
MMC)
Hardware Circuitry
Stick and MS PRO
efficiency
with minimum board components
Powered Operation
— Includes USB2.0 Transceiver
— A Bi-directional Control and a Bi-directional Bulk
— Provides low speed control functions
— 30 Mhz execution speed at 4 cycles per instruction
— 12K Bytes of internal SRAM for general purpose
— 768 Bytes of internal SRAM for general purpose
— Bi-directional 512 Byte Buffer for Bulk Endpoint
— 64 Byte RX Control Endpoint Buffer
— 64 Byte TX Control Endpoint Buffer
1.xD Picture Card not applicable to USB2227
Bootable BIOS
Endpoint are provided.
average
scratchpad
scratchpad or program execution while re-flashing
external ROM
TM
TM
, Secure Digital (SD), Mini-Secure
TM
(CF) and CF Ultra
(xD)
1
, Memory Stick
TM
I & II, and CF
TM
TM
(MS),
DATASHEET
TM
Internal or External Program Memory Interface
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
Supports firmware upgrade via USB bus if “boot block”
15 GPIOs for special function use: LED indicators, button
Compatible with Microsoft WinXP, WinME, Win2K SP3,
Win2K, Win98/98SE and Apple OS8.6 and OS9 Multi-LUN
128 Pin VTQFP Lead-free RoHS Compliant Package
124 Pin DQFN Lead-free RoHS Compliant Package (0.8mm
— 64K Byte Internal Code Space or Optional 64K Byte
MCU clock
Flash program memory is used
inputs, power control to memory devices, etc.
— Inputs capable of generating interrupts with either edge
— 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
— 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
Apple OS10, Softconnex, and Linux Multi-LUN Mass
Storage Class Drivers
Mass Storage Class Drivers available from SMSC
(1.0mm height, 14mm x14mm footprint)
height, 10mm x10mm footprint)
4th Generation USB2.0
Flash Media Controller
with Integrated Card
Power FETs
USB2227/USB2228
External Code Space using Flash, SRAM or EPROM
memory.
sensitivity
Inserted for Notebook apps
Revision 1.91 (10-13-06)
Datasheet
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