Seagate Enterprise Capacity 3.5 HDD/Constellation ES Constellation ES (.1) SA - Page 35

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. For detailed information about the Serial ATA interface, refer to the "Serial ATA: High Speed Serialized AT Attachment" specification. 6.1 HOT-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. 6.2 SERIAL 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 P2 V33 P3 V33 P4 Ground 3.3V power 3.3V power 3.3V power, pre-charge, 2nd mate 1st mate P5 Ground 2nd mate P6 Ground 2nd mate P7 V5 P8 V5 P9 V5 P10 Ground 5V power, pre-charge, 2nd mate 5V power 5V power 2nd mate P11 Ground or LED signal If grounded, drive does not use deferred spin P12 Ground 1st mate. P13 V12 P14 V12 P15 V12 12V power, pre-charge, 2nd mate 12V power 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 backplane configuration. 4. All used voltage pins (Vx) must be terminated. CONSTELLATION ES SERIAL ATA PRODUCT MANUAL, REV. F 30