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SEAGATE 600 SSD PRODUCT MANUAL, REV. B 24
4.3.1 Identify Device command
The Identify Device command (command code EC
H
) 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 8 on page 22. 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 3 for default parameter settings.
The following commands contain drive-specific features that may not be included in the Serial ATA specification.
WORD DESCRIPTION VALUE
0 General configuration 0040
H
1 Number of logical cylinders (obsolete) 16,383 3FFF
H
2 Specific configuration C837
H
3 Number of logical heads (obsolete) 16 0010
H
4-5 Retired 0000
H
6 Number of logical sectors per logical track (obsolete) 63 003F
H
7–8 Reserved for CompactFlash Association 0000
H
9 Retired 0000
H
10–19 Serial number: (ATA ASCII string padded with spaces (20
H
)) ASCII
20-21 Retired 0000
H
22 Obsolete 0000
H
23–26 Firmware revision (ATA ASCII string padded with spaces (20h)) ASCII
27–46 Model number (ATA ASCII string padded with spaces (20h)) ASCII
47 (Bits 7-0) Maximum number of logical sectors that shall be transferred per DRQ data
block on READ/WRITE MULTIPLE commands. 16
8010
H
48 Reserved for Trusted Computing feature set options 4000
H
49 Capabilities – Standby Timer, IORDY Support, etc 2F00
H
50 Capabilities Continued 4000
H
51 PIO data transfer cycle timing option (Obsolete) 0000
H
52 Retired 0000
H
53 Words 54–58, 64–70 and 88 are valid 0006
H
54 Number of current logical cylinders (Obsolete) 3FFF
H
55 Number of current logical heads (Obsolete) 0010
H
56 Number of current logical sectors per logical track (Obsolete) 003F
H
57–58 Current capacity in sectors (Obsolete) FC10
H
00FB
H
59 Number of LBAs transferred per Read Multiple or Write Multiple. Sanitize Command
Support
9110
H
60–61 Total number of user addressable logical sectors for 28-bit commands Note: The maxi-
mum value allowed in this field is: 0FFFFFFFh. If this field contains 0FFFFFFFh and the
device has user addressable LBAs greater than or 137GB, then words 100..103 contain
the total number of user addressable LBAs
XXXXXXXX
H
62 Obsolete 0000
H
63 Multiword DMA active and modes supported
(see note following this table)
0007
H
64 Advanced PIO modes supported. SATA = 0003h 0003
H
65 Minimum Multiword DMA transfer cycle time per word (120ns) 0078
H
66 Recommended Multiword DMA transfer cycle time (120ns) 0078
H