Ide Support - Intel D865PERLX Specification

For information about
The location of the USB connectors on the back panel
The location of the front panel USB connectors
The EHCI, front panel, UHCI, and USB specifications

1.8.3 IDE Support

The board provides four IDE interface connectors:
•
Two Parallel ATA IDE connectors, which support a total of four devices (two per connector)
•
Two Serial ATA IDE connectors, which support one device per connector
1.8.3.1 Parallel ATE IDE Interfaces
The ICH5's Parallel ATA IDE controller has two independent bus-mastering Parallel ATA IDE
interfaces that can be independently enabled. 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 ICH5'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 interfaces also support ATAPI devices (such as CD-ROM drives) and ATA
devices using the transfer modes listed in Section 4.4.4.1 on page 104.
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.
The Desktop Boards support Laser Servo (LS-120) diskette technology through the Parallel ATA
IDE interfaces. An LS-120 drive can be configured as a boot device by setting the BIOS Setup
program's Boot menu to one of the following:
•
ARMD-FDD (ATAPI removable media device – floppy disk drive)
•
ARMD-HDD (ATAPI removable media device – hard disk drive)
For information about
The location of the Parallel ATA IDE connectors on the D865PESO board
The location of the Parallel ATA IDE connectors on the D865PERC board
Product Description
Refer to
Figure 18, page 58
Figure 23, page 68
Section 1.5, page 18
Refer to
Figure 21, page 65
Figure 22, page 66
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