Technical Product Specification

Hardware Intel® RAID Controller SRCSAS18E

Revision 1.01

Intel order number D61769-001

2.2 Physical Layout

SSF8484

SAS/SATA

Connectors

LSI 1068

SAS

Controller

PCI Express

Connector

Intel 80333

I/O

Processor

Memory

Connector

Speaker

Figure 2. Intel

RAID Controller SRCSAS18E Physical Layout

2.3 Major Components

2.3.1 Intel

80333 Intelligent I/O Processor

The RAID Controller SRCSAS18E features the Intel

IOP333 I/O processor, operating at 500

MHz. The Intel IOP333 features a high-performance internal bus, dual-ported memory

controller, high-bandwidth PCI Express to PCI-X bridge, and an improved interrupt controller to

provide a high-performance, highly integrated processor solution. See

http://developer.intel.com/design/iio/iop333.htm

for information.

2.3.1.1 Processor Core

The Intel

IOP333 continues to build on Intel's strength in delivering high-performance, low-

power Intel XScale

microarchitecture processors. It integrates Intel

Super-Pipelined RISC

Technology with a 7-stage integer / 8-stage memory Super-Pipelined core, 32 kbyte data and

instruction caches. The version selected for this RAID controller operates at 500 MHz. The

internal bus operates at 333 MHz and offers internal bandwidth of up to 2.7 GB/sec.