![Seagate ST750LM000 Скачать руководство пользователя страница 25](http://html.mh-extra.com/html/seagate/st750lm000/st750lm000_product-manual_1221994025.webp)
Seagate Laptop SSHD SATA Product Manual, Rev. M
24
Serial ATA (SATA) Interface
6.0
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.
6.1
Hot-Plug Compatibility
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.
6.2
Serial ATA Device Plug Connector Pin Definitions
summarizes the signals on the Serial ATA interface and power connectors. Refer to the
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.
• the signal pins and the rest of the power pins.
3
There are three power pins for each voltage. One pin from each voltage is used for pre-charge when installed in a blind-mate backplane
configuration.
4
All used voltage pins (V
x
) must be terminated.
Table 10 Serial ATA 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
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