Hitachi HDT725025VLA380 Specifications - Page 239
S.M.A.R.T. Function Set B0h
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12.42 S.M.A.R.T. Function Set (B0h) Table 139: S.M.A.R.T. Function Set command (B0h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature V V V V V V V V Sector Count V V V V V V V V Sector Number Cylinder Low 0 1 0 0 1 1 1 1 Cylinder High 1 1 0 0 0 0 1 0 Device/Head 1 - 1 D - - - - Command 1 0 1 1 0 0 0 0 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count Sector Number Cylinder Low Cylinder High Device/Head Status see below 76 CRC UNC 0V Error Register 543210 0 IDN 0 ABT T0N AMN 0V0V0V Status Register 76543210 BSY RDY DF DSC DRQ COR IDX ERR 0V0V-0-V The S.M.A.R.T. Function Set command provides access to the Attribute Values, the Attribute Thresholds, and other low level subcommands that can be used for logging and reporting purposes and to accommodate special user needs. The S.M.A.R.T. Function Set command has several separate subcommands which can be selected via the Features Register of the device when the S.M.A.R.T. Function Set command is issued by the host. In order to select a subcommand the host must write the subcommand code to the Features Register of the device before issuing the S.M.A.R.T. Function Set command. The subcommands and their respective codes are listed below. Deskstar T7K500 Hard Disk Drive Specification 225