Intel S1400FP Intel Server Board S1400FP Technical Product Specification - Page 42
Serial ATA (SATA) Controller, 3.3.4 AHCI, 3.3.5 Rapid Storage Technology, 3.3.6 PCI Interface
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Functional Architecture Intel® Server Board S1400FP TPS 3.3.3 Serial ATA (SATA) Controller The C600 chipset has two integrated SATA host controllers that support independent DMA operation on up to six ports and supports data transfer rates of up to 6.0 Gb/s (600 MB/s) on up to two ports (Port 0 and 1 Only) while all ports support rates up to 3.0 Gb/s (300 MB/s) and up to 1.5 Gb/s (150 MB/s). The SATA controller contains two modes of operation - a legacy mode using I/O space, and an AHCI mode using memory space. Software that uses legacy mode will not have AHCI capabilities. The C600 chipset supports the Serial ATA Specification, Revision 3.0. The C600 also supports several optional sections of the Serial ATA II: Extensions to Serial ATA 1.0 Specification, Revision 1.0 (AHCI support is required for some elements). 3.3.4 AHCI The C600 chipset provides hardware support for Advanced Host Controller Interface (AHCI), a standardized programming interface for SATA host controllers. Platforms supporting AHCI may take advantage of performance features such as no master/slave designation for SATA devices-each device is treated as a master-and hardware assisted native command queuing. AHCI also provides usability enhancements such as Hot-Plug. AHCI requires appropriate software support (for example, an AHCI driver) and for some features, hardware support in the SATA device or additional platform hardware. 3.3.5 Rapid Storage Technology The C600 chipset provides support for Intel® Rapid Storage Technology, providing both AHCI (see above for details on AHCI) and integrated RAID functionality. The industry-leading RAID capability provides high-performance RAID 0, 1, 5, and 10 functionality on up to 6 SATA ports of the C600 chipset. Matrix RAID support is provided to allow multiple RAID levels to be combined on a single set of hard drives, such as RAID 0 and RAID 1 on two disks. Other RAID features include hot-spare support, SMART alerting, and RAID 0 auto replace. Software components include an Option ROM for pre-boot configuration and boot functionality, a Microsoft Windows* compatible driver, and a user interface for configuration and management of the RAID capability of the C600 chipset. 3.3.6 PCI Interface The C600 chipset PCI interface provides a 33 MHz, Revision 2.3 implementation. The C600 chipset integrates a PCI arbiter that supports up to four external PCI bus masters in addition to the internal C600 chipset requests. This allows for combinations of up to four PCI down devices and PCI slots. 3.3.7 Low Pin Count (LPC) Interface The C600 chipset implements an LPC Interface as described in the LPC 1.1 Specification. The Low Pin Count (LPC) bridge function of the C600 resides in PCI Device 31: Function 0. In addition to the LPC bridge interface function, D31:F0 contains other functional units including DMA, interrupt controllers, timers, power management, system management, GPIO, and RTC. 3.3.8 Serial Peripheral Interface (SPI) The C600 chipset implements an SPI Interface as an alternative interface for the BIOS flash device. An SPI flash device can be used as a replacement for the FWH, and is required to 30 Revision 1.0 Intel order number G64246-001