Hitachi 7K400 Specifications - Page 168
Data format of command data structure, 20.2.3.3, Data format of error data structure
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12.20.2.3.2 Data format of command data structure Table 111: Command data structure Description Device Control register Features register (7:0) (see Note) Features register (15:8) Sector count register(7:0) Sector count register(15:8) Sector number register(7:0) Sector number register(15:8) Cylinder Low register (7:0) Cylinder Low register (15:8) Cylinder High register (7:0) Cylinder High register (15:8) Device/Head register Command register Reserved Timestamp (milliseconds from Power-on) Bytes Offset 1 00h 1 01h 1 02h 1 03h 1 04h 1 05h 1 06h 1 07h 1 08h 1 09h 1 0Ah 1 0Bh 1 0Ch 1 0Dh 4 0Eh 18 Note: bits (7:0) refer to the most recently written contents of the register. Bits (15:8) refer to the contents of the register prior to the most recent write to the register 12.20.2.3.3 Data format of error data structure Table 112: Error data structure Description Reserved Error register (7:0) Sector count register(7:0)(See Note) Sector count register(15:8)(See Note) Sector number register(7:0) Sector number register(15:8) Cylinder Low register (7:0) Cylinder Low register (15:8) Cylinder High register (7:0) Cylinder High register (15:8) Device/Head register Status register Extended error data (vendor specific) State Life stamp (hours) Bytes Offset 1 00h 1 01h 1 02h 1 03h 1 04h 1 05h 1 06h 1 07h 1 08h 1 09h 1 0Ah 1 0Bh 19 0Ch 1 1Fh 2 20h 34 Deskstar 7K400 Hard Disk Drive Specification 154
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