SAS3224 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – PCIe to 24-port, 12 Gb/s SAS/SATA IOC

Product Brief
Applications
• Direct Attached SAS/SATA
controller solutions for high-
connectivity applications
• External storage controllers
requiring high connectivity
SAS/SATA interface for the
host or drive side connect
Key Features
• High Performance IOP
−−PowerPC 476 @ 1.2 GHz
−−32 KB L1 I/D caches
−−512 KB L2 caches
−−6 MB Internal RAM
• PCI Express 3.0 Host Interface
−−Supports x8, x4, x2, x1 PCIe
lanes at a transfer rate up to
8.0 GT/s per lane, full duplex
−−Lane and polarity reversal
−−Supports End-to-End CRC
(ECRC) and Advanced Error
Reporting (AER)
−−PCI Express hot plug support
−−Variable PCIe bandwidth
negotiation
SAS 3224
PCIe® to 24-port, 12 Gb/s SAS/SATA IOC
Extending RAID and SAS Technology Leadership,
Broadcom Introduces 24-port 12 Gb/s SAS/SATA IO
Controller (IOC)
Broadcom products serve four primary target markets: wireless
communications, wired infrastructure, enterprise storage, and industrial.
Broadcom offers the industry’s broadest portfolio of storage solutions,
backed by decades of experience and trusted by the world’s leading server
and storage suppliers. Broadcom provides the building blocks for storage
solutions that help customers understand, prioritize, store and protect
critical data.
The Broadcom 12 Gb/s SAS portfolio includes MegaRAID® controller cards,
host bus adapters (HBAs), advanced software options, Syncro® shared
DAS solutions and SAS storage ICs, including RAID-on-Chip (ROCs), I/O
controllers and expanders.
Overview
The SAS 3224 is a fourth generation Serial Attached SCSI (SAS) IO
Controller (IOC) device based on the leading Fusion-MPT™ (Message
Passing Technology) architecture. The SAS 3224 integrates the latest
enhancements in SAS and PCI Express technology.
The SAS 3224 supports 8 PCIe® lanes and complies with the PCI Express
(PCIe) 3.0 specification that extends the PCIe data rates up to 8.0 GT/s
per lane, and is backwards compatible to the 5.0/2.5 GT/s data rate
supported by PCIe 2.x., 1.x. It also incorporates enhancements such as End-
to-End CRC (ECRC) with Advanced Error Reporting (AER) and the latest
advancements in lane and polarity reversal, power management, hot plug
support, and MSI/MSI-X and legacy interrupt generation.
The 24-port IO controller device provides SAS data transfer rates of 12,
6, and 3 Gb/s per lane and SATA data transfer rates of 6 and 3 Gb/s per
lane. The device automatically negotiates between the speeds. Enhanced
features are supported such as T-10 EEDP for early detection of and
recovery from data corruption and Spread Spectrum-Clocking (SSC) for
EMI reduction. Additional features include DataBolt Technology, allowing
users to take advantage of 12 Gb/s speeds while utilizing existing 6 Gb/s
drives and backplanes, and SATA FIS-based switching that provides
improved performance with SATA drives.
The SAS 3224 is ideal for the host or drive side connect for external storage
controllers requiring a SAS/SATA interface. The SAS 3224 can support up
to 2,000 devices and 8,000 outstanding IOs without external RAM and can
achieve up to 1 million plus IOs per second.
SAS 3324 PCIe® to 24-port, 12 Gb/s SAS/SATA IOC