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SEAGATE LAPTOP SSHD SATA PRODUCT MANUAL, REV. D 17
5.0 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 0–4; 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.
5.1 HOT-PLUG COMPATIBILITY
Seagate Laptop SSHD 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
www.serialata.org. This device
requires a COMRESET from the host after a hotplug event.
5.2 SERIAL ATA DEVICE PLUG CONNECTOR PIN DEFINITIONS
Table 8 summarizes the signals on the Serial ATA interface and power connectors. Refer to the Notes below.
NOTES
1 All pins are in a single row, with a 1.27 mm (0.050 in) pitch.
2 The comments on the mating sequence apply to the case of backplane blindmate connector only. In this case, the mating sequences
are:
• the ground pins P4 and P12.
• the pre-charge power pins and the other ground pins.
Table 8 Serial ATA Connector Pin Definitions
S
EGMENT 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
Power
P1 V
33
3.3V power
P2 V
33
3.3V power
P3 V
33
3.3V power, pre-charge, 2nd mate
P4 Ground 1st mate
P5 Ground 2nd mate
P6 Ground 2nd mate
P7 V
5
5V power, pre-charge, 2nd mate
P8 V
5
5V power
P9 V
5
5V power
P10 Ground 2nd mate
P11 Ground or LED signal If grounded, drive does not use deferred spin
P12 Ground 1st mate
P13 V
12
12V power, pre-charge, 2nd mate
P14 V
12
12V power
P15 V
12
12V power