D201GLY Datasheet, PDF (18/76 Pages) Intel Corporation – Technical Product Specification

Intel Desktop Board D201GLY Technical Product Specification
1.5.3 IDE Support
The board provides one parallel ATA IDE connector that supports two devices.
1.5.3.1 Parallel ATA IDE Interface
The D201GLY board 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
SiS964L’s ATA-100 logic can achieve read transfer rates up to 100 MB/sec and write
transfer rates up to 88 MB/sec.
NOTE
ATA-66 and ATA-100 are faster timings and require a specialized cable to reduce
reflections, noise, and inductive coupling.
The Parallel ATA IDE interface also supports ATAPI devices (such as CD-ROM drives)
and ATA devices using the transfer modes.
For information about
The location of the Parallel ATA IDE connector
Refer to
Figure 7, page 38
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