Hardware User Guide

Intel® RAID Controller RS3UC080 User Guide 3
3 Functional Descriptions
PCI Express Interface
PCIe is a high-speed standard local bus for point-to-point interfacing of I/O components
to the processor and the memory subsystems in high-end computers and servers. The LSI*
SAS 3008 controller chip contains the PCIe functionality for the Intel 12Gb/s SAS
Controller. The LSI* SAS 3008 controller chip connects to the PCIe bus and generates
timing and protocol in compliance with the PCIe specifications.
The Intel 12Gb/s SAS Controller supports eight-lane PCIe performance up to 64GT/s
single direction and 128GT/s dual direction.
SAS-3 Interface
The LSI* SAS 3008 controller chip contains the SATA+SAS functionality for the Intel
12Gb/s SAS Controller. The following table shows the Intel SAS 12Gb/s SAS
performance.
Table 1. Intel SAS 12 Gb/s SAS Performance
LED Management
The Intel 12Gb/s SAS Controller offers LED management support for your backplane
implementation. This configuration option lets you use the Intel 12Gb/s SAS Controller
with backplanes configured for the SGPIO interface. The Intel 12Gb/s SAS Controller is
in accordance with SFF-8485: Specification for Serial GPIO (SGPIO) Bus, Revision 0.7.
Half Duplex Full Duplex
Narrow port (one lane), 1200 MB/s Narrow port (one lane), 2400 MB/s
Wide port (four lanes), 4800 MB/s Wide port (four lanes), 9600 MB/s