Serial Ata Interface; Hot-Plug Compatibility; Serial Ata Device Plug Connector Pin Definitions - Seagate ST9250317AS - Momentus 5400 FDE 250 GB Hard Drive Product Manual

4.0

Serial ATA interface

These drives use the industry-standard Serial ATA (SATA) interface that supports FIS data transfers. It sup-
ports 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

Hot-Plug compatibility

Momentus 5400 FDE.4 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 specifi-
cation can be downloaded from http://www.serialata.org. This device requires a COMRESET from the host
after a hotplug event.
4.2

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
Momentus 5400 FDE.4 SATA Product Manual, Rev. B
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
25