DP43TF datasheet(21/86 Pages) INTEL

21 / 86 page

Product Description

1.7

Parallel IDE Controller

The 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 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. The BIOS supports Logical Block Addressing (LBA) and Extended

Cylinder Head Sector (ECHS) translation modes. The drive reports the transfer rate

and translation mode to the BIOS.

For information about

Refer to

The location of the Parallel ATA IDE connector

Figure 10, page 42

DP43TF Datasheet(PDF) 21 Page - Intel Corporation