Western Digital Ultrastar DC HC310 - Page 173

159
Western Digital Hard Disk Drive OEM Specification
Output Parameters To The Device
Feature Current
Subcommand (bits 3-0)
When bits(3:0) is 5h, SET FEATURES Subcommand.
Subcommand Specific
(bits 7-4)
Feature Previous
Contents of SET FEATURES (15:8) field
Sector Count Current
TAG (bits 7-3)
The TAG value is assigned to be different from all other queued commands. The
value does not exceed the maximum queue depth specified by the Word 75 of the
Identify Device information.
Sector Count Previous
Contents of SET FEATURES LBA(7:0) field LBA (7:0).
Sector Number Current
Contents of SET FEATURES LBA(27:24)
Cylinder Low Current
Contents of SET FEATURES LBA(15:8)
Cylinder Low Previous
Cylinder High Current
Contents of SET FEATURES LBA(23:16)
Cylinder High Previous
Device/Head
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)