Usb; Ide Support - Intel D865GRH Specification

Intel Desktop Board D865GRH Technical Product Specification

1.7.3 USB

The boards support up to eight USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and
EHCI-compatible drivers.
The ICH5 provides the USB controller for all ports. 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
•
Four ports are routed to two separate front panel USB connectors
✏
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 drivers for Windows 2000 (with Service Pack 3)
and Windows XP (with Service Pack 1) and is not currently supported by any other operating
system. Check Intel's Desktop Board website for possible driver updates for other operating
systems.
For information about
The location of the USB connectors on the back panel
The location of the front panel USB connectors
The EHCI, front panel, UHCI, and USB specifications

1.7.4 IDE Support

The board provides four IDE interface connectors:
•
Two Parallel ATA IDE connectors, which support a total of four devices (two per connector)
•
Two Serial ATA IDE connectors, which support one device per connector
1.7.4.1 Parallel ATA IDE Interfaces
The ICH5's Parallel ATA IDE controller has two independent bus-mastering Parallel ATA IDE
interfaces that can be independently enabled. The Parallel ATA 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. 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's ATA-100
logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to 88 MB/sec.
38
Refer to
Figure 16, page 72
Figure 20, page 81
Section 1.4, page 17