Intel DP43BF Product Specification - Page 22

ATA Support

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Intel Desktop Board DP43BF Technical Product Specification 1.6.3 ATA Support The board provides seven ATA interface connectors: • One PATA connector that supports two devices • Five SATA connectors that support one device per connector • One eSATA connector 1.6.3.1 PATA Interface The discrete PATA controller has one bus-mastering PATA interface that is accessible through a 44-pin connector. The PATA 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/s. • Ultra DMA: DMA protocol on ATA bus supporting host and target throttling and transfer rates of up to 33 MB/s. • ATA-66: DMA protocol on ATA bus supporting host and target throttling and transfer rates of up to 66 MB/s. ATA-66 protocol is similar to Ultra DMA and is device driver compatible. • ATA-100: DMA protocol on ATA bus allows host and target throttling. The controller's ATA-100 logic can achieve read transfer rates up to 100 MB/s and write transfer rates up to 88 MB/s. NOTE ATA-66 and ATA-100 are faster timings and require a specialized cable to reduce reflections, noise, and inductive coupling. The PATA interface also supports ATAPI devices (such as optical drives) and ATA devices using the transfer modes. 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 The location of the PATA connector Refer to Figure 10, page 44 22

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Intel Desktop Board DP43BF Technical Product Specification
22
1.6.3
ATA Support
The board provides seven ATA interface connectors:
•
One PATA connector that supports two devices
•
Five SATA connectors that support one device per connector
•
One eSATA connector
1.6.3.1
PATA Interface
The discrete PATA controller has one bus-mastering PATA interface that is accessible
through a 44-pin connector.
The PATA 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/s.
•
Ultra DMA:
DMA protocol on ATA bus supporting host and target throttling and
transfer rates of up to 33 MB/s.
•
ATA-66:
DMA protocol on ATA bus supporting host and target throttling and
transfer rates of up to 66 MB/s.
ATA-66 protocol is similar to Ultra DMA and is
device driver compatible.
•
ATA-100:
DMA protocol on ATA bus allows host and target throttling.
The
controller’s ATA-100 logic can achieve read transfer rates up to 100 MB/s and write
transfer rates up to 88 MB/s.
NOTE
ATA-66 and ATA-100 are faster timings and require a specialized cable to reduce
reflections, noise, and inductive coupling.
The PATA interface also supports ATAPI devices (such as optical drives) and ATA
devices using the transfer modes.
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 PATA connector
Figure 10, page 44