LSISAS1064 LSI, LSISAS1064 Datasheet - Page 19

• Manufacturer Part Number: LSISAS1064
• Manufacturer: LSI

Specifications of LSISAS1064

• Lead Free Status / RoHS Status: Not Compliant

advantages of SATA, SCSI, and FC, and is the future mainstay of the
enterprise and high-end workstation storage markets. SAS offers a
higher bandwidth per pin than parallel SCSI, and improves signal and
data integrity.
The SAS interface uses the proven SCSI command set to ensure reliable
data transfers, while providing the connectivity and flexibility of point-to-
point serial data transfers. The serial transmission of SCSI commands
eliminates clock skew challenges. The SAS interface provides improved
performance, simplified cabling, smaller connectors, lower pin count, and
lower power requirements when compared to parallel SCSI.
SAS controllers leverage a common electrical and physical connection
interface that is compatible with Serial ATA technology. The SAS and
SATA protocols use a thin, 7-wire connector instead of the 68-wire SCSI
cable or 26-wire ATA cable. The SAS/SATA connector and cable are
easier to manipulate, allow connections to smaller devices, and do not
inhibit airflow. The point-to-point SATA architecture eliminates inherent
difficulties created by the legacy ATA master-slave architecture, while
maintaining compatibility with existing ATA firmware.
The LSISAS1064 can function as an SSP initiator, an SSP target, an
SMP initiator, an STP initiator, or a SATA initiator. The LSISAS1064 uses
SSP to communicate with other SAS devices, and uses SMP to
communicate topology management information with other SAS devices.
STP communicates with SATA devices by tunneling through SAS
expanders directly to the SATA device or by using the SATA protocol to
communicate directly with the SATA device.
1.3
Benefits of the Fusion-MPT Architecture
The Fusion-MPT architecture provides an open architecture that is ideal
for SAS, SATA, SCSI, Fibre Channel, and other emerging interfaces. The
I/O interface is interchangeable at the system and application level;
embedded software uses the same device interface for different bus
implementations, just as application software uses the same storage
management interfaces for different bus implementations. LSI Logic
provides Fusion-MPT device drivers that are binary compatible between
SAS, SATA, Fibre Channel, and Ultra320 SCSI interfaces.
Benefits of the Fusion-MPT Architecture
1-5
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