Seagate ST2000DX001 User Manual

Page of 42
Desktop SSHD Product Manual, Rev. B
27
4.0 SATA Interface
These drives use the industry-standard Serial ATA (SATA) 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 SATA interface, refer to the “Serial ATA: High Speed Serialized AT Attachment” 
specification.
4.1
Hot-Plug compatibility
Desktop SSHD drives incorporate connectors which enable you to hot plug these drives in accordance with the 
SATA Revision 3.0 specification. This specification can be downloaded from www.serialata.org.
4.2
SATA device plug connector pin definitions
 summarizes the signals on the SATA interface and power connectors.
Table 6 SATA 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