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Cylinder Low Previous
Cylinder High Current
Cylinder High Previous
ICC
Device/Head
FUA (bit 7)
Input Parameters From The Device
Sector Number (HOB=0)
Sector Number (HOB=1)
Cylinder Low (HOB=0)
Cylinder Low (HOB=1)
Cylinder High (HOB=0)
Cylinder High (HOB=1)
LBA (39:32)
LBA (23:16)
LBA (47:40)
The Isochronous Command Completion (ICC) field is valid when PRIO is set to a
value of 01b. It is assigned by the host based on the intended deadline associated
with the command issued. When a deadline has expired, the device continues to
complete the command as soon as possible. The host can modify this behavior if the
device supports the NCQ NON-DATA command (see 11.15 NCQ NON-DATA (63h))
and supports the Deadline Handling subcommand (see 11.15.2 Deadline handling
Subcommand (1h)). This subcommand allows the host to set whether the device
aborts commands that have exceeded the time set in ICC.
There are several parameters encoded in the ICC field: Fine or Coarse timing,
Interval and the Max Time. The Interval indicates the time units of the Time Limit
parameter.
If ICC Bit 7 cleared to zero, then the time interval is fine-grained.
Interval
= 10msec
Time Limit
= (ICC[6:0] + 1) * 10 msec
If ICC Bit 7 is set to one (coarse encoding), then the time interval is coarse grained.
Interval
= 0.5 sec
Time Limit
= (ICC[6:0] + 1) * 0.5 sec
When the FUA bit is set to 1, the completion status is indicated after the transferred
data are written to the media also when Write Cache is enabled.
When the FUA bit is set to 0, the completion status may be indicated before the
transferred data are written to the media successfully when Write Cache is enabled.
LBA (7:0) of the address of the first unrecoverable error.
LBA (31:24) of the address of the first unrecoverable error.
LBA (15:8) of the address of the first unrecoverable error.
LBA (39:32) of the address of the first unrecoverable error.
LBA (23:16) of the address of the first unrecoverable error.
LBA (47:40) of the address of the first unrecoverable error.
Western Digital Hard Disk Drive OEM Specification
292
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