32 Barracuda SATA Product Manual, Rev. B
Serial ATA (SATA) Interface www.seagate.com
Notes
1. All pins are in a single row, with a 1.27 mm (0.050”) pitch.
2. The comments on the mating sequence apply to the case of backplane blindmate conn ector 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.
• All used voltage pins (Vx) must be terminated.
4.3 Supported ATA commands
The following table lists Serial ATA standard commands that the drive supports.
For a detailed description of the ATA commands, refer to the Serial ATA International Organization:
Serial ATA Revision 2.6 (http://www.sata-io.org).
See “S.M.A.R.T. commands” on page 40 for details and subcommands used in the S.M.A.R.T. implementation.
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 V55V power, pre-charge, 2nd mate
P8 V55V power
P9 V55V 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
Command name Command code (in hex)
Check Power Mode E5H
Device Configuration Freeze Lock B1H / C1H
Device Configuration Identify B1H / C2H
Device Configuration Restore B1H / C0H
Device Configuration Set B1H / C3H
Table 8 Serial ATA connector pin definitions
Segment Pin Function Definition