
User's Manual 17
3.1.2.IdentifyDeviceData
ThefollowingtabledetailsthesectordatareturnedafterissuinganIDENTIFYDEVICEcommand.
Word
F=Fixed
V=Variable
X=Both
DefaultValue Description
0 F 0040h
Generalconfigurationbit‐significant
information
1 X 3FFFh Obsolete‐Numberoflogicalcylinders(16,383)
2 V C837h Specificconfiguration
3 X 0010h Obsolete‐Numberoflogicalheads(16)
4‐5 X 0h Retired
6 X 003Fh
Obsolete‐Numberoflogicalsectorsperlogical
track(63)
7‐8 V 0h
ReservedforassignmentbytheCompactFlash
Association
9 X 0h Retired
10‐19 F varies Serialnumber(20ASCIIcharacters)
20‐21 X 0h Retired
22 X 0h Obsolete
23‐26 F varies Firmwarerevision(8ASCIIcharacters)
27‐46 F varies Modelnumber
47 F 8010h
7:0–Maximumnumberofsectorstransferred
perinterruptonmultiplecommands
48 F 0h Reserved
49 F 2F00h Capabilities
50 F 4000h Capabilities
51‐52 X 0h Obsolete
53 F 0007h Words88and70:64valid
54 X 3FFFh Obsolete‐Numberoflogicalcylinders(16,383)
55 X 0010h Obsolete‐Numberoflogicalheads(16)
56 X 003Fh
Obsolete‐Numberoflogicalsectorsperlogical
track(63)
57‐58 X 00FBFC10h Obsolete
59 F 0101h
Numberofsectorstransferredperinterrupton
multiplecommands
60‐62 125,045,424
63
F
(64GB)
Totalnumberofuseraddressablesectors
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