Usb; Serial Ata Interfaces - Intel BLKDQ35MP Technical Product Specification

1.6.2

USB

The board supports up to 12 USB 2.0 ports, supports UHCI and EHCI, and uses UHCI-
and EHCI-compatible drivers.
The ICH9DO provides the USB controller for all ports. The port arrangement is as
follows:
• Six ports are implemented with stacked back panel connectors
• Six ports are routed to three separate front panel USB headers
For information about
The location of the USB connectors on the back panel
The location of the front panel USB headers
1.6.3

Serial ATA Interfaces

The board provides five Serial ATA (SATA) connectors, which support one device per
connector. The board also provides one red-colored external Serial ATA (eSATA)
connector.
1.6.3.1 Serial ATA Support
The ICH9DO I/O controller offers six independent Serial ATA ports with a theoretical
maximum transfer rate of 3 Gbits/sec per port. One device can be installed on each
port for a maximum of six Serial ATA devices. A point-to-point interface is used for
host to device connections, unlike Parallel ATA IDE which supports a master/slave
configuration and two devices per channel.
For compatibility, the underlying Serial ATA functionality is transparent to the
operating system. The Serial ATA controller can operate in both legacy and native
modes. In legacy mode, standard IDE I/O and IRQ resources are assigned (IRQ 14
and 15). In Native mode, standard PCI Conventional bus resource steering is used.
Native mode is the preferred mode for configurations using the Windows* XP and
Windows Vista* operating systems.
NOTE
Many Serial ATA drives use new low-voltage power connectors and require adapters or
power supplies equipped with low-voltage power connectors.
For more information, see: http://www.serialata.org/.
For information about
The location of the Serial ATA connectors
Product Description
Refer to
Figure 10, page 42
Figure 11, page 43
Refer to
Figure 11, page 43
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