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12Gb/s SAS-3 controller IP from CEVA

Posted: 14 Aug 2013     Print Version  Bookmark and Share

Keywords:CEVA  SAS-3 controller  enterprise application  Serial Attached SCSI  DMA support 

CEVA Inc. has released its 12Gb/s Serial Attached SCSI (SAS-3) Controller IP for licensing. According to the firm, the controller IP allows customers to design best-in-class next generation enterprise storage products in a timely and cost-effective manner.

SAS-3 is the third generation of the Serial Attached SCSI interface, a robust, high performance serial storage interconnect which is widely favoured in Enterprise applications. Driven by the increasing performance capability of storage devices that are saturating the 6Gb/s line rate of SAS-2, designers are eager to adopt 12Gb/s SAS-3, stated CEVA.

The SAS Controller IP claims to offer a comprehensive solution with advanced features including SCSI SBC-2 End-to-End Protection (DIF), powerful full duplex DMA supporting Scatter/Gather operation with a flexible AMBA AXI interface, narrow and wide port support plus multiple optimisations for maximising IOPS in both Initiator and Target (SSD) applications, the company indicated. The IP contains a Phy control layer that implements the state machines required for SNW4 and 12Gb/s link training sequences. This flexible interface layer simplifies integration with 3rd party or customer's SAS Phy. Further, CEVA can provide an integrated solution with a number of leading Phy IP partners. In addition to ASIC/ASSP silicon deployment, the IP is also geared for implementation in Xilinx/Altera FPGAs, employing the Phy embedded therein.

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