Western Digital Ultrastar DC HC310 Specifications page 139

3.5 inch serial ata hard disk drive
Table of Contents

Advertisement

Output Parameters To The Device
Feature Current bit 7 (A/R)
Feature Current bit 6 (R/W)
Feature Current bit 0..2 (Stream ID)
Feature Previous
Sector Count Current
Sector Count Previous
If set to one, a request to add a new stream.
If cleared to zero, a request to remove a previous configured stream is
specified.
R/W specifies a read stream if cleared to zero and a write stream if set
to one.
The Stream ID shall be a value between 0 and 7.
The default Command Completion Time Limit (CCTL).
The value is calculated as follows:
(Default CCTL) = ((content of the Features register)* (Identify
Device words (99:98))) microseconds.
This time shall be used by the device when a streaming command with
the same stream ID and a CCTL of zero are issued. The time is
measured from the write of the command register to the final INTRQ for
command completion. The device has minimum CCTL value. When the
specified value is shorter than the minimum value, CCTL is set to the
minimum value. Actual minimum CCTL value is described in the
"Deviations from Standard" section.
Allocation Unit Size In Sectors (7:0)
Allocation Unit Size In Sectors (15:8)
Western Digital Hard Disk Drive OEM Specification
125

Advertisement

Table of Contents
loading

Table of Contents