AT Command Set
WD Green MB500M-6Gb
32
RELEASED 5/2/13 (WD CONFIDENTIAL)
2679-771422-A00
100-103
Total number of User Addressable Logical Sectors (QWord)
WD20NPVT (3,907,029,168)
WD15NPVT (2,930,277,168)
104
Streaming Transfer Time - PIO
0
105
Maximum number of 512 byte blocks per Data Set
Management command
0
106
Physical sector size / logical sector size
Bit 15 Shall be cleared to zero
Bit 14 Shall be set to one
Bit 13 if set, Device has multiple logical sectors per phys-
ical sector.
Bit 12 if set, Device Logical Sector longer than 256 Words
Bits 11-4 Reserved
Bits 3-0 2X logical sectors per physical sector
6003h
107
Inter-seek delay for ISO 7779 standard acoustic testing
0
108-111
World Wide Name
XXXXXXXXXXXXXXXX
112-115
Reserved
0
116
Reserved for TLC
0
117-118
Logical Sector size (DWord)
0
119
Commands and feature sets supported (Continued from words
82-84)
Bit 15: Cleared to zero
Bit 14: Shall be set to one
Bit 13-8: Reserved
Bit 7: If set, Extended Power Conditions feature set
supported
Bit 6: If set, Sense Data Reporting supported
Bit 5: If set, Free-fall Control feature set is supported
Bit 4: If set, DOWNLOAD MICROCODE with offsets is
supported
Bit 3: If set, READ and WRITE DMA EXT GPL optional
commands are supported
Bit 2: If set, WRITE UNCORRECTABLE EXT supported
Bit 1: If set, Write-Read-Verify feature set is supported
Bit 0: Reserved for DDT
0100 0000 0001 1000b
4018h
120
Commands and feature sets supported (Continued from words
85-87)
Bit 15: Cleared to zero
Bit 14: Shall be set to one
Bit 13-8: Reserved
Bit 7: If set, Extended Power Conditions feature set
supported
Bit 6: If set, Sense Data Reporting supported
Bit 5: If set, Free-fall Control feature set is supported
Bit 4: If set, DOWNLOAD MICROCODE with offsets is
supported
Bit 3: If set, READ and WRITE DMA EXT GPL optional
commands are supported
Bit 2: If set, WRITE UNCORRECTABLE EXT supported
Bit 1: If set, Write-Read-Verify feature set is supported
Bit 0: Reserved for DDT
0100 0000 0001 1000b
4018h
121-126
Reserved
0
127
Obsolete
0
128
Security Status
Bit 15-9: Reserved
Bit 8: Security level (0 = High, 1 = Maximum)
Bit 7-6: Reserved
Bit 5: If set, Enhanced Security Erase supported
Bit 4: If set, Security count expired
Bit 3: If set, Security Frozen
Bit 2: If set, Security Locked
Bit 1: If set, Security enabled
Bit 0: If set, Security supported
0000 000X 001X XXX1b
129-159
Vendor Specific
0