0 serial ata (sata) interface, 1 hot-plug compatibility, 2 serial ata device plug connector pin definitions – Seagate BARRACUDA ST31000524AS User Manual
Page 31: Serial ata (sata) interface, Hot-plug compatibility, Serial ata device plug connector pin definitions, Table 8
Barracuda SATA Product Manual, Rev. A
31
4.0 Serial 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 to 4; multiword DMA modes 0 to 2, and Ultra DMA modes 0 to 6.
For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT
Attachment” specification.
4.1 Hot-Plug compatibility
Barracuda drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial
ATA Revision 2.5 specification. This specification can be downloaded from www.serialata.org.
4.2 Serial ATA device plug connector pin definitions
summarizes the signals on the Serial ATA interface and power connectors.
Table 8 Serial ATA connector pin definitions
Segment Pin
Function
Definition
Signal
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+
S7
Ground
2nd mate
Key and spacing separate signal and power segments