1.1 Feature Summary
• Universal Serial Bus Interface (USB) o USB 2.0 Compliant  Integrated USB 2.0 PHY  Full Speed and High Speed Modes o USB 3.0 Compliant  Integrated USB 3.0 PHY  Super Speed Mode  (5 Gb/S)  8KB TX/RX Buffer • 16KB Bursts in conjunction with DBUF • Full Duplex Transfers only o Mass Storage Class Interface  Mass Storage Class Bulk Only Transport Support  USB Attached SCSI (UASP) Support  Supports Programmable number of Queued Commands (up to 64) • Hardware SCSI to ATA Translation • Hardware LBA Translation and Extent Checking • Hardware Support for 8 LUNs o Vendor Unique Debug Support  Firmware Download  CPU Run Control o UART Interface  Default Mode  Host Selectable
• Integrated Microprocessor o ARC-600 Processor  32-bit CPU  200MHz Clock Rate (programmable) o 112KB embedded Instruction SRAM o 32KB embedded Data SRAM o 20KB embedded ROM  Default Operation  Code Upload for Flash or Disk o JTAG Debug Support
• RAID Support o Hardware RAID Acceleration (RAID0, RAID1) o RAID 0, 1, Span Support
• High Speed Data Buffer o Separate TX and RX Buffers  Supports simultaneous SATA Read and Write transfers o RX Buffer:  64KB Single Port Memory o TX Buffer:  64KB Single Port Memory o Multiple Segments per Buffer  Supports Write Prefetch (limited size transfers)  Supports USB Write Overlap  Supports SATA Read Overlap o 100MHz, 256-bit Operation  3200 MB/s Bandwidth  Supports multiple active transfers  Tightly coupled with USB FIFOs to allow 16KB USB Bursts o Hardware Compare  Supports Write/Verify Function  Supports RAID 1 (Mirror) background scrub