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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.
For detailed information about the Serial ATA interface, refer to the "Serial ATA: High Speed Serialized AT Attachment"
specification.
5.1
Hot-Plug compatibility
Enterprise Capacity 2.5 HDD v3 SATA drives incorporate connectors which enable users to hot plug these drives in
accordance with the Serial ATA Revision 3.2 specification. This specification can be downloaded from www.serialata.org.
The drive motor must come to a complete stop (Ready to spindle stop time indicated in Section 2.4)
Caution
prior to changing the plane of operation. This time is required to insure data integrity.
5.2
Serial ATA device plug connector pin definitions
Table 6 summarizes the signals on the Serial ATA interface and power connectors.
Table 6 Serial ATA connector pin definitions
Segment
Pin
Function
Signal
S1
Ground
S2
A+
S3
A-
S4
Ground
S5
B-
S6
B+
S7
Ground
Key and spacing separate signal and power segments
Power
P1 *
V
33
P2 *
V
33
P3 * † V
33
P4
Ground
P5
Ground
P6
Ground
P7
V
5
P8
V
5
P9
V
5
P10
Ground
P11
Ground or LED signal
P12
Ground
P13
V
12
P14
V
12
P15
V
12
* Pins P1, P2 and P3 are tied together.
† Host commanded disable via pin P3 is NOT supported by Enterprise Capacity 2.5 HDD
Seagate Enterprise Capacity 2.5 HDD v3 SATA Product Manual, Rev. D
Definition
2nd mate
Signal Pair A: Receives data at the drive Phy from the host
2nd mate
Signal Pair B: Transmits data from the drive Phy to the host
2nd mate
3.3V power
3.3V power
3.3V power, pre-charge, 2nd mate
1st mate
2nd mate
2nd mate
5V power, pre-charge, 2nd mate
5V power
5V power
2nd mate
If grounded, drive does not use deferred spin
1st mate.
12V power, pre-charge, 2nd mate
12V power
12V power
31
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