Seagate ST500NM0011 Serial Ata Sata Interface, Hot-Plug Compatibility, Segment, Function, Signal

6.0SERIAL 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.

6.1HOT-PLUG COMPATIBILITY

Constellation ES Serial ATA drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial ATA Revision 2.6 specification. This specification can be downloaded from www.serialata.org.

Caution:

The drive motor must come to a complete stop (Ready to spindle stop time indicated in Section 2.7) prior to changing the plane of operation. This time is required to insure data integrity.

6.2SERIAL ATA DEVICE PLUG CONNECTOR PIN DEFINITIONS

Table 8 summarizes the signals on the Serial ATA interface and power connectors.

Table 8 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	V33	3.3V power
	P2	V33	3.3V power
	P3	V33	3.3V power, pre-charge, 2nd mate
	P4	Ground	1st mate
	P5	Ground	2nd mate
	P6	Ground	2nd mate
	P7	V5	5V power, pre-charge, 2nd mate
	P8	V5	5V power
	P9	V5	5V power
	P10	Ground	2nd mate
	P11	Ground or LED signal	If grounded, drive does not use deferred spin
	P12	Ground	1st mate.
	P13	V12	12V power, pre-charge, 2nd mate
	P14	V12	12V power
	P15	V12	12V power

Notes:

1.All pins are in a single row, with a 1.27mm (0.050”) 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 back- plane configuration.

4.All used voltage pins (Vx) must be terminated.

CONSTELLATION ES SERIAL ATA PRODUCT MANUAL, REV. F 30