Intel D915GAG Product Specification - Page 28

IDE Support - board drivers

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Intel Desktop Board D915GAV/D915GAG Technical Product Specification 1.7.1.4 Configuration Modes A list of supported modes for the Intel GMA900 graphics controller is available as a downloadable document. For information about Supported modes for the D915GAV board Supported modes for the D915GAG board Refer to http://www.intel.com/design/motherbd/av/av_prdoc.htm http://www.intel.com/design/motherbd/ag/ag_prdoc.htm 1.7.2 USB The boards support up to eight USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers. The ICH6 provides the USB controller for all ports. The port arrangement is as follows: • Four ports are implemented with dual stacked back panel connectors adjacent to the audio connectors • Four ports are routed to two separate front panel USB connectors 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. For information about The location of the USB connectors on the back panel The location of the front panel USB connectors on the D915GAV board The location of the front panel USB connectors on the D915GAG board Refer to Figure 18, page 64 Figure 19, page 66 Figure 20, page 68 1.7.3 IDE Support The boards provides five IDE interface connectors: • One parallel ATA IDE connector that supports two devices • Four serial ATA IDE connectors that support one device per connector 1.7.3.1 Parallel ATE IDE Interface The ICH6's Parallel ATA IDE controller has one bus-mastering Parallel ATA IDE interface. The Parallel ATA IDE interface supports 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 ICH6's ATA-100 logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to 88 MB/sec. 28

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Intel Desktop Board D915GAV/D915GAG Technical Product Specification
28
1.7.1.4
Configuration Modes
A list of supported modes for the Intel GMA900 graphics controller is available as a downloadable
document.
For information about
Refer to
Supported modes for the D915GAV board
Supported modes for the D915GAG board
1.7.2
USB
The boards support up to eight USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and
EHCI-compatible drivers.
The ICH6 provides the USB controller for all ports.
The port arrangement is as follows:
•
Four ports are implemented with dual stacked back panel connectors adjacent to the audio
connectors
•
Four ports are routed to two separate front panel USB connectors
±
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.
For information about
Refer to
The location of the USB connectors on the back panel
Figure 18, page 64
The location of the front panel USB connectors on the D915GAV board
Figure 19, page 66
The location of the front panel USB connectors on the D915GAG board
Figure 20, page 68
1.7.3
IDE Support
The boards provides five IDE interface connectors:
•
One parallel ATA IDE connector that supports two devices
•
Four serial ATA IDE connectors that support one device per connector
1.7.3.1
Parallel ATE IDE Interface
The ICH6’s Parallel ATA IDE controller has one bus-mastering Parallel ATA IDE interface.
The
Parallel ATA IDE interface supports 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 ICH6’s ATA-100
logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to 88 MB/sec.