Function Set (B0H); Table 143.S.m.a.r.t. Function Set Command (B0H) - Hitachi 7K80 - Deskstar - Hard Drive Specifications

12.42 S.M.A.R.T. Function Set (B0h)
Table 144: S.M.A.R.T. Function Set command (B0h)
Command Block Output Registers
Register
Data
Feature
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
7 6 5
CRC UNC 0
0 V 0
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.
7 6 5 4 3 2 1 0
- - - - - - - -
V V V V V V V V
V V V V V V V V
- - - - - - - -
0 1 0 0 1 1 1 1
1 1 0 0 0 0 1 0
1 - 1 D - - - -
1 0 1 1 0 0 0 0
Error Register
4 3 2 1
IDN 0 ABT T0N AMN
V 0 V 0
Deskstar 7K80 Hard Disk Drive Specification
Command Block Input Registers
Register
Data
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
0 7 6 5
BSY RDY DF DSC DRQ COR IDX ERR
V 0 V 0
208
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
Status Register
4 3 2 1
V - 0 -
0
V