4.1Serial ATA (SATA) interface

These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6. The drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.

For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification.

4.1.1Hot-Plug compatibility

EE25.2 Series SATA drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial ATA: High Speed Serialized AT Attachment specification revision 2.0. This specification can be downloaded from http://www.serialata.com.

4.1.2Serial ATA device plug connector pin definitions

Table 5 summarizes the signals on the Serial ATA interface and power connectors..

Table 5:

Serial ATA connector pin definitions

 

 

 

 

Segment

Pin

Function

Definition

 

 

 

 

 

S1

Ground

2nd mate

 

 

 

 

 

S2

A+

Differential signal pair A from Phy

 

 

 

 

 

S3

A-

 

 

 

 

 

 

S4

Ground

2nd mate

 

 

 

 

 

S5

B-

Differential signal pair B from Phy

 

 

 

 

 

S6

B+

 

Signal

 

 

 

S7

Ground

2nd mate

 

 

 

 

Key and spacing separate signal and power segments

34

EE25.2 Series Product Manual, Rev. E

Page 40
Image 40
Seagate ST940817AM manual Serial ATA Sata interface, Serial ATA connector pin definitions, Segment Pin Function Definition

ST940817SM, ST940818SM, ST960817SM, ST930817AM, ST960818AM specifications

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