Intel Desktop Board DP43BFL LGA775 Socket P43 ATX BOXDP43BFL 用户手册

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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 

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.   

 

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.  

 

 

The location of the PATA connector