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7
General
7.1
Introduction
This specification describes the host interface of HUS726TxTALx6xx
The interface conforms to the following working documents of Information technology with certain limitations
described in the chapter 7.3 "Deviations from Standard" on page 36
Serial ATA International Organization: Serial ATA Revision 3.2
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7.2
Terminology
Device
Device indicates HUS726TxTALx6xx
Host
Host indicates the system that the device is attached to.
7.3
Deviations From Standard
The device conforms to the referenced specifications, with deviations described below.
Check Power Mode
COMRESET
Download
COMRESET response time
Streaming Commands
SCT Error Recovery Control
If the Extended Power Conditions feature set is disabled and the device is in Idle
mode, Check Power Mode command returns FFh by Sector Count Register,
instead of returning 80h. Refer to 11.1 "Check Power Mode" for detail.
COMRESET response is not the same as that of Power On Reset. Refer to
section 9.1 "Reset Response" for detail.
Both Download Microcode and Download Microcode DMA are aborted when the
device is in security locked mode.
During 500ms from Power On Reset, COMINIT is not returned within 10ms as a
response to COMRESET.
When the device is in standby mode, Streaming Commands can't be completed
while waiting for the spindle to reach operating speed even if execution time
exceeds specified CCTL (Command Completion Time Limit). The minimum
CCTL is 50ms.CCTL is set to 50ms when the specified value is shorter than
50ms.
When the device is in standby mode, any command where error recovery time
limit is specified can't be completed while waiting for the spindle to reach
operating speed even if execution time exceeds specified recovery time limit. The
minimum time limit is 6.5 second. When the specified time limit is shorter than 6.5
second, the issued command is aborted.
Western Digital Hard Disk Drive OEM Specification
36
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