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Serial ATA (SATA) interface
Command name
Command code (in hex)
Write DMA FUA Extended
3DH
Write FPDMA Queued
61H
Write Log DMA Ext
57H
Write Log Extended
3FH
Write Multiple
C5H
Write Multiple Extended
39H
Write Multiple FUA Extended
CEH
Write Sectors
30H
Write Sectors Extended
34H
Write Stream DMA Ext
3AH
Write Uncorrectable Extended
45H
5.3.1
Identify Device command
The Identify Device command (command code ECH) transfers information about the drive to the host following power up.
The data is organized as a single 512-byte block of data, whose contents are shown in Table 12 on page 34. All reserved
bits or words should be set to zero. Parameters listed with an “x” are drive-specific or vary with the state of the drive. see
Section 2.0 on page 8for default parameter settings.
The following commands contain drive-specific features that may not be included in the Serial ATA specification..
Table 13Identify Device command
Word
Description
Value
0C5AH
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
1
Obsolete
16,383
2
ATA-reserved
C837H
3
Obsolete
16
4
Retired
0000H
5
Retired
0000H
6
Obsolete
003FH
7–9
Retired
0000H
10–19
Serial number: (20 ASCII characters, 0000H = none)
ASCII
20-21
Retired
0000H
22
Obsolete
0000H
23–26
Firmware revision (8 ASCII character string, padded with blanks to end of string)
x.xx
Seagate Exos X24 SATA Product Manual, Rev. C
36