Overview:

The SAS35xR expanders are the second series of high performance 12 Gb/sSAS expanders that utilize a new, power-optimized design to deliver best inclass power utilization and the latest enhancements in SAS technology. The36-, 28- and 24-port expanders offer a smaller footprint and are equippedwith an integrated ARM Cortex-R4 processor for system initialization,LED management, enclosure management, and topology managementfunctions such as discovery. The SAS35xR expanders support end deviceSAS data transfer rates of 12, 6, 3 Gb/s, and SATA data transfer rates of 6and 3 Gb/s.Representing the eighth generation of SAS expanders, the SAS35xR seriesadds a suite of enhanced power management features encompassing theability to create vendor-unique SMP or SES commands. Firmware featuresinclude:

• SAS PHY Power Conditions

• Partial and Slumber Power Management

• Wake-In-Band and Enter/Exit Chip Wide-Low Power modes. 

Key Features:

• Integrated enclosure processor

– ARM Cortex-R4 @ 300 MHz

• 12 Gb/s SAS interface

– 36-, 28-, 24-port SAS/SATAexpanders

– Supports 12 Gb/s, 6 Gb/s, and3 Gb/s SAS, and 6 Gb/s and3 Gb/s SATA data transfer rates

– Ports are non-denominational -initiator and target connect

– Supports narrow and wide portconfigurations

– Spread Spectrum Clocking

– Supports SSP initiator andtarget, SMP initiator and target,STP initiator and SATA protocols

– DataBolt Bandwidth Optimizer(all ports) 

Applications:

• SAS/SATA drive enclosures

• External RAID subsystems

• JBOD architectures

• Server backplanes