Intel RS3UC080 Hardware User Guide - Page 17

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 Half Duplex Narrow port (one lane), 1200 MB/s Wide port (four lanes), 4800 MB/s Full Duplex Narrow port (one lane), 2400 MB/s Wide port (four lanes), 9600 MB/s 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. Intel® RAID Controller RS3UC080 User Guide 3