Seagate SKYHAWK ST4000VX005 Product Manual page 30

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Table 10 Identify Device commands (continued)
Word Description
51 PIO data-transfer cycle timing mode
52 Retired (Obsolete)
15:8 Free-fall Control Sensitivity
7:3 Reserved
53 2 the fields reported in word 88 are valid
1 the fields reported in words (70:64) are valid
0 Obsolete
54 Number of current logical cylinders (Obsolete)
55 Number of current logical heads (Obsolete)
56 Number of current logical sectors per logical track (Obsolete)
57–58 Current capacity in sectors (Obsolete)
15 The BLOCK ERASE EXT command is supported
14 The OVERWRITE EXT command is supported
13 The CRYPTO SCRAMBLE EXT command is supported
12 The Sanitize feature set is supported
59
11:9 Reserved
8 Multiple logical sector setting is valid
7:0 Current setting for number of logical sectors that shall be transferred per DRQ
data block on READ/WRITE Multiple commands
Total number of user-addressable LBA sectors available
(see Section 2.2 for related information)
*Note: The maximum value allowed in this field is: 0FFFFFFFh (268,435,455
60–61
sectors, 137GB). Drives with capacities over 137GB will have 0FFFFFFFh in this field
and the actual number of user-addressable LBAs specified in words 100-103. This
is required for drives that support the 48-bit addressing feature.
62 Obsolete
Multiword DMA active and modes supported
63
(see note following this table)
64 Advanced PIO modes supported (modes 3 and 4 supported)
65 Minimum multiword DMA transfer cycle time per word (120 nsec)
66 Recommended multiword DMA transfer cycle time per word (120 nsec)
67 Minimum PIO cycle time without IORDY flow control (240 nsec)
68 Minimum PIO cycle time with IORDY flow control (120 nsec)
Additional Supported
15 CFast Specification Support
14 Deterministic data in trimmed LBA range(s) is supported
13 Long Physical Sector Alignment Error Reporting Control is supported
12 Obsolete
11 READ BUFFER DMA is supported
10 WRITE BUFFER DMA is supported
9 Obsolete
69
8 DOWNLOAD MICROCODE DMA is supported
7 Reserved for IEEE 1667
6 0 = Optional ATA device 28-bit commands supported
5 Trimmed LBA range(s) returning zeroed data is supported
4 Device Encrypts All User Data
3 Extended Number of User Addressable Sectors is supported
2 All write cache is non-volatile
1:0 Reserved
Seagate SkyHawk Product Manual, Rev. C
SATA Interface
Value
0200
H
0200
H
0007
H
xxxx
H
xxxx
H
xxxx
H
xxxx
H
5C10
H
0FFFFFFFh*
0000
H
xx07
H
0003
H
0078
H
0078
H
0078
H
0078
H
0000
H
29