OXU931DS, Hi-Speed USB 2.0 to SATA/eSATA Controller
Highlights
The OXU931DS is a single chip solution for bridging between USB 2.0 or
eSATA and hard disks.
General Features
o High performance dual SATA storage
controller
Optimized for performance and offering increased functionality on the external
SATA-to-SATA path, the OXU931DS supports a range of RAID and storage
applications targeted at users requiring maximum performance, reliability and
ease of use.
Key Features
o High performance dual SATA storage
controller
o Integrated SATA cores and PHYs
- Port can be configured for eSATA
device operation
- Supports SATA II Gen2m
specification and 3.0Gbps and
1.5Gbps interfaces
o Integrated 480Mbps USB2.0 high
speed core and PHY
o Integrated hardware RAID controller
supporting (over USB):
- Disk striping (RAID0) for maximum
performance
- Disk mirroring (RAID 1) for
maximum data protection
- Disk spanning for large capacity
single volume
o External flash interface
o I2C interface for optional EEPROM
o USB and USB mass-storage compliant
o Support for USB Human Interface
Device (HID)
The OXU931DS can be configured for USB to dual SATA or eSATA to SATA
operation. When configured in dual SATA mode, the integrated hardware RAID
controller supports disk striping (RAID0) for maximum performance or disk
mirroring (RAID1) for maximum data protection. For higher speed connections,
one of the SATA ports can be configured as a device port enabling USB and
eSATA combo applications.
The OXU931DS shares a common software base with other devices in Oxford’s
range of USB and FireWire storage controllers. In addition, Oxford offers a
comprehensive support package that includes evaluation boards, reference
designs, and a software development kit.
Embedded ARM Processor
By managing the data flow through the OXU931DS, the on-chip ARM7
processor enables a whole new series of standalone consumer electronic product
to be developed in a simple C/C++ programming environment.
o 12 GPIOs allow easy product
customization
USB2.0
The embedded USB2.0 PHY supports both full and high speed, using bulk-only
transport Mass Storage Class device protocol. Its fast read and write transfers
ensure that the maximum possible host performance is maintained.
No additional USB host drivers are required, for either Windows® or Mac®
operating systems, for standard storage, button notification or GPIO control
applications.
SATA Interface
The SATA dual port host with embedded PHY and controller supports the latest
revisions of the SATA II specifications, including the Gen2m interface for
eSATA devices. Interface speeds of 3GHz and 1.5GHz deliver maximum
performance with minimum latency for external SATA storage.
© PLX Technology, www.plxtech.com
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4/8/2009, Version 1.0
