Getac 9270D Service Manual page 20

1.2.2.2 Features and Functions
Digital Media Interface (DMI)
Digital Media Interface (DMI) is the chip-to-chip connection between the processor and Ibex Peak chipset. This
high-speed interface integrates advanced priority-based servicing allowing for concurrent traffic and true
isochronous transfer capabilities. Base functionality is completely software-transparent, permitting current and
legacy software to operate normally.
PCI Express* Interface
The Ibex Peak provides up to 8 PCI Express Root Ports, supporting the PCI Express Base Specification, Revision
2.0. Each Root Port supports 2.5 GB/s bandwidth in each direction (5 GB/s concurrent). PCI Express Root Ports 1-4
can be statically configured as four x1 Ports or ganged together to form one x4 port. Ports 5 and 6 can only be used
as two x1 ports.
Serial ATA (SATA) Controller
The Ibex Peak has two integrated SATA host controllers that support independent DMA operation on up to six ports
and supports data transfer rates of up to 3.0 GB/s (300 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 Ibex Peak supports the Serial ATA Specification, Revision 1.0a. The
Ibex Peak 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).