Intel D845EPT2 D845EPT2_D845EBG2_TechProdSpec. - Page 26

USB Port Configuration - driver

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Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.8.2 USB The Desktop Boards D845EBG2 and D845EPT2 support up to six USB 2.0 ports and fully support UHCI and EHCI and use UHCI- and EHCI-compatible drivers. For more than six USB devices, an external hub can be connected to any of the ports. The ICH4 provides the USB controller for all ports, as shown in Figure 5. The port arrangement is as follows: • Two ports are implemented with stacked back panel connectors, adjacent to the PS/2 connectors • Two ports are implemented with stacked back panel connectors, adjacent to the audio connectors • Two ports are routed to the front panel USB connector 82801DB I/O Controller Hub (ICH4) USB USB USB ports (2) USB ports (2) Back panel USB connectors adjacent to the PS/2 ports Back panel USB connectors adjacent to the audio connectors USB USB ports (2) Front panel USB connectors Figure 5. USB Port Configuration OM14260 ✏ NOTE Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements, even if no device is attached to the cable. Use shielded cable that meets the requirements for full-speed devices. ✏ NOTE USB 2.0 support has been tested with Windows 2000 and Windows XP drivers and is not currently supported by any other operating system. For information about The location of the USB connectors on the back panel The signal names of the back panel USB connectors The location of the front panel USB connector The signal names of the front panel USB connector The EHCI, front panel, UHCI, and USB specifications Refer to Figure 10, page 54 Table 19, page 55 Figure 15, page 70 Table 42, page 71 Section 1.5, page 18 26

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Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification
26
1.8.2
USB
The Desktop Boards D845EBG2 and D845EPT2 support up to six USB 2.0 ports and fully support
UHCI and EHCI and use UHCI- and EHCI-compatible drivers.
For more than six USB devices, an
external hub can be connected to any of the ports.
The ICH4 provides the USB controller for all ports, as shown in Figure 5.
The port arrangement is
as follows:
•
Two ports are implemented with stacked back panel connectors, adjacent to the PS/2
connectors
•
Two ports are implemented with stacked back panel connectors, adjacent to the audio
connectors
•
Two ports are routed to the front panel USB connector
OM14260
82801DB
I/O Controller Hub
(ICH4)
USB
USB
USB
USB ports (2)
USB ports (2)
Back panel USB connectors
adjacent to the PS/2 ports
USB ports (2)
Back panel USB connectors
adjacent to the audio connectors
Front panel USB connectors
Figure 5.
USB Port Configuration
✏
NOTE
Computer systems that have an unshielded cable attached to a USB port may not meet FCC
Class B requirements, even if no device is attached to the cable.
Use shielded cable that meets the
requirements for full-speed devices.
✏
NOTE
USB 2.0 support has been tested with Windows 2000 and Windows XP drivers and is not currently
supported by any other operating system.
For information about
Refer to
The location of the USB connectors on the back panel
Figure 10, page 54
The signal names of the back panel USB connectors
Table 19, page 55
The location of the front panel USB connector
Figure 15, page 70
The signal names of the front panel USB connector
Table 42, page 71
The EHCI, front panel, UHCI, and USB specifications
Section 1.5, page 18