Seagate Video 3.5 HDD Video 3.5 HDD Product Manual (formerly Pipeline HD) - Page 29
Serial ATA Interface, 4.1 Hot-Plug compatibility
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4.0 Serial ATA Interface These drives use the industry-standard Serial ATA (SATA) interface that supports FIS data transfers. It supports ATA programmed input/output (PIO) modes 0 to 4; multiword DMA modes 0 to 2, and Ultra DMA modes 0 to 6. For detailed information about the Serial ATA interface, refer to the "Serial ATA: High Speed Serialized AT Attachment" specification. 4.1 Hot-Plug compatibility Video 3.5 HDD drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial ATA Revision 2.5 specification. This specification can be downloaded from www.serialata.org. 4.2 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 Definition S1 Ground S2 A+ 2nd mate Differential signal pair A from PHY S3 A- Signal 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 Video 3.5 HDD Product Manual, Rev. H 29