SiI3726 SATA Port Multiplier

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Silicon Images SiI 3726 SATA Port Multiplier is 1-to-5 SATA Port Multiplier designed to provide a high performance link between a single SATA host port and five SATA device ports. With its unique data aggregation capability and 3 Gbps serial link capability, the SiI 3726 SATA Port Multiplier is able to take full advantage of 3 Gbps host link bandwidth and FIS-based switching host controllers by bundling together data from device ports and sending it over the 3 Gbps host link.



Additionally, the feature-rich SiI 3726 supports all the port multiplier related SATA II extensions allowing system designers to exploit the full potential of SATA in their storage solutions. The SiI 3726 SATA Port Multiplier supports host and device link rates of 1.5 Gbps and 3 Gbps with autonegotiation allowing system designers to utilize 3 Gbps host links with today’s 1.5 Gbps hard drives, and to futureproof designs for the emergence of 3 Gbps SATA hard drives. Additionally, the SiI 3726 contains a SATA Enclosure Management Bridge (SEMB) to pass in-band enclosure management information between the host and an enclosure management device.

Other important features include, programmable high drive capability for backplane and external applications, asynchronous notification to eliminate the need for host polling to determine if a device has been added or removed, and hot plug support.

The SiI 3726 is designed for optimum power, performance and price. It is based on Silicon Images industry leading SATALink technology. It leverages much of the circuit innovation at the physical layer of Silicon Image’s proprietary reduced-overhead Multi-layer Serial Link (MSLTM) architecture, which was pioneered and proven with our market-leading PanelLink® products. Silicon Image has shipped over 35 million units of PanelLink® products for host systems and displays in the PC and the CE markets, notable for their noisy operating conditions.


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One-to-five native SATA Port Multiplier
Full support for FIS-based switching and command-based switching SATA host controllers
Advanced data aggregation architecture for ultra-fast read and write operations with FIS-based switching controllers
21mm x 21mm, 364 pin BGA package with a 20 x 20 array of balls
High-speed, native SATA connections to host and device
Host and device status and activity LEDs
1.5 Gbps and 3.0 Gbps PHY support with auto-negotiation
Compliant with SATA II external PHY specifications
Independently programmable PHY settings to support extended PCB trace lengths and external SATA applications
Industry proven SATALink technology
Hot-plug and ATAPI support
SATA Enclosure Management Bridge (SEMB) support with I2C interface to the external Storage Enclosure Processor (SEP)
Far-end Re-timed loop-back BIST for host initiated system testing
Supports host control of hard disk drive staggered spin-up
Asynchronous notification support
Features independent 8 kByte FIFO per device serial ATA channel for reads and writes
High performance data movement between all SATA ports


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Product Brief

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