Serial Ata (Sata) Interface; Hot-Plug Compatibility; Serial Ata Device Plug Connector Pin Definitions - Seagate EE25.2 - Series 80 GB Hard Drive Product Manual

4.1

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 0–4; 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.
4.1.1

Hot-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.
4.1.2

Serial 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
S1 Ground
S2 A+
S3 A-
S4 Ground
S5 B-
S6 B+
Signal
S7 Ground
34
Definition
2nd mate
Differential signal pair A from Phy
2nd mate
Differential signal pair B from Phy
2nd mate
Key and spacing separate signal and power segments
EE25.2 Series Product Manual, Rev. E