Intel BLKD102GGC2 Product Specification - Page 18

IDE Support

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Intel Desktop Board D102GGC2 Technical Product Specification 1.5.4 IDE Support The board provides six IDE interface connectors: • Two parallel ATA IDE connector that supports two devices • Four serial ATA IDE connectors that support one device per connector 1.5.4.1 Parallel ATE IDE Interface The IXP 450's Parallel ATA IDE controller has two bus-mastering Parallel ATA IDE interfaces. 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 IXP 450's ATA-100 logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to 88 MB/sec. • ATA-133: DMA protocol on IDE bus allows host and target throttling. The IXP 450's ATA-133 logic is designed to achieve read transfer rates up to 133 MB/sec and write transfer rates in excess of 100 MB/sec. NOTE ATA-66, ATA-100, and ATA-133 are faster timings and require a specialized cable to reduce reflections, noise, and inductive coupling. The Parallel ATA IDE interfaces also support ATAPI devices (such as CD-ROM drives) and ATA devices using the transfer modes. For information about The location of the Parallel ATA IDE connectors Refer to Figure 7, page 44 18

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Intel Desktop Board D102GGC2 Technical Product Specification
18
1.5.4
IDE Support
The board provides six IDE interface connectors:
•
Two parallel ATA IDE connector that supports two devices
•
Four serial ATA IDE connectors that support one device per connector
1.5.4.1
Parallel ATE IDE Interface
The IXP 450’s Parallel ATA IDE controller has two bus-mastering Parallel ATA IDE interfaces.
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 IXP 450’s
ATA-100 logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to
88 MB/sec.
•
ATA-133:
DMA protocol on IDE bus allows host and target throttling.
The IXP 450’s
ATA-133 logic is designed to achieve read transfer rates up to 133 MB/sec and write transfer
rates in excess of 100 MB/sec.
±
NOTE
ATA-66, ATA-100, and ATA-133 are faster timings and require a specialized cable to reduce
reflections, noise, and inductive coupling.
The Parallel ATA IDE interfaces also support ATAPI devices (such as CD-ROM drives) and ATA
devices using the transfer modes.
For information about
Refer to
The location of the Parallel ATA IDE connectors
Figure 7, page 44