USB2224

USB2224 Bus Powered USB2.0 Flash Media Controller Datasheet Product Features ƒ Complete System Solution for interfacing SmartMediaTM (SM) or xD Picture CardTM (xD), Memory StickTM (MS), High Speed Memory Stick (HSMS), Memory Stick PRO (MSPRO), MS DuoTM, Secure Digital (SD), Mini-Secure Digital (Mini-SD), Transflash (SD), MultiMediaCardTM (MMC), Reduced Size Multimedia Card (RSMMC), NAND Flash, Compact FlashTM (CF), CF UltraTM I & II and CF form-factor ATA hard drives to USB2.0 bus. − Supports USB Bulk Only Mass Storage Compliant Bootable BIOS ƒ Double Buffered Bulk Endpoint − Bi-directional 512 Byte Buffer for Bulk Endpoint − 64 Byte RX Control Endpoint Buffer − 64 Byte TX Control Endpoint Buffer ƒ Internal or External Program Memory Interface − 64K Byte Internal Code Space or Optional 64K Byte External Code Space using Flash, SRAM or EPROM memory. ƒ ƒ ƒ ƒ ƒ On Board 12Mhz Crystal Driver Circuit 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 − ...