Hitachi HTS541040G9AT00 Specifications - Page 145
Description, Bytes, Offset
UPC - 000059826569
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Command data structure: Data format of each command data structure is shown below. Table 88: 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. State shall contain a value indicating the state of the device when the command was issued to the device or the reset occurred as described below. Value State Value x0h x1h x2h x3h x4h x5h-xAh xBh-xFh State Unknown Sleep Standby Active/Idle SMART Off-line or Self-test Reserved Vendor specific Note: The value of x is vendor specific. Travelstar 5K100 Hard Disk Drive Specification 131