![Western Digital Ultrastar DC HC310 Скачать руководство пользователя страница 29](http://html1.mh-extra.com/html/western-digital/ultrastar-dc-hc310/ultrastar-dc-hc310_specifications_961649029.webp)
15
Western Digital Hard Disk Drive OEM Specification
6.1.2
Signal Definition (SATA)
SATA has receivers and drivers to be connected to TX+/- and RX +/- Serial data signal.
Defines the signal names of I/O connector pin and signal name.
No.
Plug Connector Pin Definition
Signal
I/O
Signal
S1
Gnd
2nd mate
Gnd
S2
A+
Differential signal A from Phy
RX+
Input
S3
A-
RX-
Input
S4
Gnd
2nd mate
Gnd
S5
B-
Differential signal B from Phy
TX-
Output
S6
B+
TX+
Output
S7
Gnd
2nd mate
Gnd
Key and spacing separate signal and power segments
Power
P1
Reserved*
Not used (P1 and P2 tied internally)
Reserve
P2
Reserved*
Not used (P1 and P2 tied internally)
Reserve
P3
Reserved* or
PWDIS* (option)
Not used (P1, P2, and P3 tied internally)
or
Enter/Exit Power Disable (option)
Reserve
or
PWDIS
P4
Gnd
1st mate
Gnd
P5
Gnd
2nd mate
Gnd
P6
Gnd
2nd mate
Gnd
P7
5V
5V power, Precharge, 2nd Mate
5V
P8
5V
5V power
5V
P9
5V
5V power
5V
P10 Gnd
2nd mate
Gnd
P11 Reserved
Support staggered spin-up and LED activity
VDih max=2.1V
Reserve
P12 Gnd
1st mate
Gnd
P13 12V
12V power, Precharge, 2nd mate
12V
P14 12V
12V power
12V
P15 12V
12V power
12V
Table 11 Interface Connector Pins and I/O Signals
* SATA Specification Revision 3.1 and prior revisions assigned 3.3V to pins P1, P2, and P3. In addition, device plug
pins P1, P2, and P3 were required to be bused together. In the standard configuration of this product, P3 is
connected with P1 and P2 and this product behaves as SATA 3.1 or prior version product in a system designed to
SATA 3.2 system that does not support the 3.3 feature. For product with the optional SATA 3.3 Power Disable
Feature supported, P3 is now assigned as the POWER DISABLE CONTROL PIN. If P3 is driven HIGH
(2.1V-3.6V
max)
, power to the drive circuitry will be disabled. Drives with this optional feature WILL NOT POWER UP in systems
designed to SATA Spec Revision 3.1 or earlier because P3 driven HIGH will prevent the drive from poweri ng up.