Product Brief
SiI5744
SteelVine
™
Storage Processor
Storage processor with embedded USB 2.0 and eSATA interfaces
• Storage appliances
• CE storage devices
• External storage
Applications
The SiI5744 is a low-cost, single-chip solution for digital home and small office storage
appliances. This SteelVine Storage Processor connects a USB 2.0 or 3 Gbps eSATA host
port to two 3 Gbps eSATA Gen2m device ports. Features of the SiI5744 include
advanced RAID modes, drive locking, and single-button backup. Extensive software
developer kits are available from Silicon Image to simplify product differentiation.
enclosures
Key Features
• eSATA and USB 2.0
host ports
All of the SATA ports on the SiI5744 comply with
the 3 Gbps eSATA specification, making this semi-
conductor suitable for use in both internal and
external applications. The SiI5744 features propri-
etary eSATA based capacity expansion, which
allows users to easily grow the capacity of an
existing SteelVine enabled device by adding addi-
tional drives. The new drives will appear to the
host system as additional space in the existing
SteelVine volume.
The SiI5744 also features drive locking, which
helps protect users' data by allowing them to
password lock directly attached and cascaded
drives. If a locked drive is detached from its
assigned computer or cascade, the data on the
drive will be inaccessible until it is reconnected
and unlocked with the user supplied password. In
addition, the SiI5744 supports single-button
backup through third-party applications for sim-
ple and worry-free data protection.
SiI5744 supports JBOD and the following RAID
modes: FAST (RAID 0), SAFE (RAID 1) and BIG
(Concatenation) as well as two new modes,
SAFE50 and SAFE33. SAFE50 creates two vol-
umes across two drives, with half of each physical
drive being allocated to each volume. One volume
is in SAFE mode (RAID 1) and the other is in BIG
(Concatenated) mode. SAFE33 also creates two
volumes, but with 1/3 of physical space being ded-
icated to SAFE mode and 2/3 to BIG mode. These
modes offer a balance between protection of criti-
cal data and maximization of space for non-criti-
cal data. The SiI5744 allows RAID mode
configuration through a GUI, strap pins, or I
2
C
for true software-free implementations.
Which RAID modes are supported depends on the
way drives are connected to the storage processor.
When adding two drives to the SiI5744, BIG,
FAST, SAFE, JBOD, SAFE50 and SAFE33 are sup-
ported. When drives are cascaded, BIG and SAFE
are available.
• eSATA capacity
expansion
• Drive locking
• Backup button
• RAID modes: FAST
(RAID 0), SAFE
(RAID 1), BIG
(Concatenation),
SAFE50 & SAFE33,
JBOD
SiI5744 System Diagram
SiI5744
eSATA-Based
Capacity
Expansion
With
eSATA-based
Capacity
Expansion, the capacity of a
SiI5744 enabled appliance can
be easily expanded either by
adding additional drives directly
to the chip, or by adding addi-
tional
SteelVine
enabled
Features
Serial ATA Host Interface Features
Electrical Specifications
•
•
•
•
Serial ATA Gen2m compliance
eSATA and 2-meter cable support
3 Gbps (auto-negotiates to 1.5 Gbps)
Compatible with PM aware and non-PM
aware hosts
• Allows multiple drives to be accessed by non-
PM aware drive hosts
• Supports NCQ
USB Host Interface Features
• GPIO pins: 9 GPI, 6 GPO
• 3.3V IO Supply, 1.8V Core Supply
• 1.02 watts (typical)
Environmental
• Operating temperature: 0ºC to 70ºC
• Operating relative humidity: 5% to 80%
• Non-operating relative humidity: 5% to 95%
Physical Specifications
devices in a cascaded topol-
ogy. These additional drives or
devices
will
dynamically
appear (in BIG, SAFE33 or
SAFE50) to the host system
as increased storage capac-
ity in the existing SteelVine
volume.
•
•
•
•
•
Complies with USB 2.0 specification
480 Mb/s (can auto-negotiate to 12 Mb/s)
Compatible with OHCI / UHCI / EHCI hosts
Supports up to four LUNs
Supports Mass Storage Class
• 88-pin QFN, 10mm x 10mm
Additional SteelVine features
Device Interface Features
•
•
•
•
•
•
•
Serial ATA Gen2m compliance
eSATA and 2-meter cable support
3 Gbps (auto-negotiates to 1.5 Gbps)
Independent 8KB FIFO / Port
Power management capabilities
Supports hot plug
Supports ATAPI & asynchronous notification
Block Diagram
•
•
•
•
•
•
•
•
•
No driver, BIOS or software required
User API interface through I
2
C
No drive reformatting on RAID change
Email Notification
Optional XML API
RAID 1 drive racing
Optional SteelVine Manager GUI
Mandatory SMART commands available
SAFE later
Capacity Expansion Diagram
Silicon Image, Inc.
1060 E. Arques Avenue
Sunnyvale, CA 94085
T 408.616.4000
F 408.830.9530
www.siliconimage.com
© 2006 Silicon Image, Inc. All rights reserved. Silicon Image, the Silicon Image logo, SteelVine, the SteelVine logo, SiI and SiI5744 are trademarks or registered trademarks of Silicon Image, Inc. in the United States
and other countries. Other trademarks are property of their respective holders. Product specifications are subject to change without notice.
Part Number: SiI5744
SiI PB-60 rev1 8/06
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