Intel D102GGC2 - Specification Changes

Intel
®
Desktop Board D102GGC2 Specification Update
5
SPECIFICATION CHANGES
The Specification Changes listed in this section apply to the Intel
®
Desktop Board D102GGC2
Technical Product Specification (Order Number D44278). All Specification Changes will be
incorporated into a future version of that specification.
1. Change to Section 1.5.4.1, Parallel ATA IDE Interface
Section 1.5.4.1, Parallel ATA IDE Interface will change in its entirety to remove support for ATA-
133 interface as follows:
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.
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NOTE
ATA-66 and ATA-100are 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