
Deskstar 7K160 Hard Disk Drive Specification
119
10.22.2.3 Error Recovery Control command (action code: 0003h)
The Error Recovery Control command can be used to set time limits for read and write error recovery. For non-
queued commands, these timers apply to command completion at the host interface. For queued commands where
in order data delivery is enabled, these timers begin counting when the device begins to execute the command, not
when the command is sent to the device. These timers do not apply to streaming commands, or to queued commands
when out-of-order data delivery is enabled.
These command timers are volatile. The default value is 0 (i.e. disable command time-out).
Word Name
Value
Description
0
Action Code
0003h
Set the read and write error recovery time
0001h
Set New Value
1 Function
Code
0002h
Return Current Value
0001h Read
Timer
2 Selection
Code
0002h Write
Timer
3
Value
Word
If the function code is 0001h, then this field contains
the recovery time limit in 100ms units. The minimum
SCT timeout value is 65 (=6.5 second). When the
specified time limit is shorter than 6.5 second,the
issued command is aborted.
255:4 reserved
0000h
Command Block Input Registers (Success)
Error 00h
Sector Count
If Function Code was 0002h, then this is the LSB of the requested recovery limit.
Otherwise, this field is reserved.
Sector Number
If Function Code was 0002h, then this is the MSB of the requested recovery limit.
Otherwise, this field is reserved.
Cylinder Low
reserved
Cylinder High
reserved
Device/Head reserved
Status 50h
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