
S875WP1-E TPS
Functional Architecture
Revision 4.0
15
OM16101
82801ER
I/O Controller Hub
(ICH5-R)
USB
USB
USB
USB ports [2]
USB ports [2]
Back panel USB connectors
above NIC1
USB ports [2]
Back panel USB connectors
above NIC2
Front panel USB header
Providing up to 2 USB ports
Figure 7. USB Port Configuration
NOTES
•
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.
•
Native USB 2.0 support has been tested with Windows* 2000 and Windows XP drivers
and is not currently supported by any other operating system. See the Intel server board
support website at
http://support.intel.com/support/motherboards/server/s875wp1-e
for
possible driver updates for other operating systems.
For information about
Refer to
The location of the USB connectors on the back panel
Figure 1
The location of the front panel USB connector
Figure 1
The signal names of the front panel USB header
Section 5.9
Legacy USB support
Section 6.4
Wake from USB
Section 3.6
3.2.3 IDE
Interfaces
The ICH5-R IDE controller has two independent bus-mastering IDE interfaces that can be
independently enabled. The IDE interfaces support the following modes:
•
Programmed I/O (PIO): processor controls data transfer.
•
8237-style DMA: DMA offloads the processor, supporting transfer rates of up to 16 MB/sec.
•
Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and transfer rates
of up to 33 MB/sec.
•
ATA-66: DMA protocol on IDE bus supporting host and target throttling and transfer
rates of up to 66 MB/sec. The ATA-66 protocol is similar to Ultra DMA and is device
driver compatible.
•
ATA-100: DMA protocol on IDE bus allows host and target throttling. The ICH5-R ATA-
100 logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to
88 MB/sec.