Seagate ST9250421ASG ユーザーズマニュアル

Momentus 7200.3 SATA Product Manual, Rev. C

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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.

Momentus 7200.3 SATA drives incorporate connectors which enable you to hot plug these drives in accor-
dance with  the Serial ATA: High Speed Serialized AT Attachment specification revision 2.0. This specification 
can be downloaded from http://www.serialata.org. This device requires a COMRESET from the host after a 
hotplug event.

Table 7 summarizes the signals on the Serial ATA interface and power connectors..

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