Western Digital Ultrastar DC HC310 - Table 214 Go to Power Condition Subcommand

246
Western Digital Hard Disk Drive OEM Specification
11.46.6.2 Go To Power Condition subcommand
Command Block Output Registers
Command Block Input Registers
Register
7
6
5
4
3
2
1
0
Register
7
6
5
4
3
2
1
0
Data
-
-
-
-
-
-
-
-
Data
-
-
-
-
-
-
-
-
Feature
0
1
0
0
1
0
1
0
Error
…See Below …
Sector Count
V
V
V
V
V
V
V
V
Sector Count
-
-
-
-
-
-
-
-
Sector Number
-
-
-
-
0
0
0
1
Sector Number
-
-
-
-
-
-
-
-
Cylinder Low
-
-
-
-
-
-
-
-
Cylinder Low
-
-
-
-
-
-
-
-
Cylinder High
-
-
-
-
-
-
-
-
Cylinder High
-
-
-
-
-
-
-
-
Device/Head
1
-
1
D
-
-
-
-
Device/Head
-
-
-
-
-
-
-
-
Command
1
1
1
0
1
1
1
1
Status
…See Below …
Error Register
Status Register
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CRC
UNC
0
IDN
0
ABT
T0N
AMN
BSY
RDY
DF
DSC
DRQ
COR
IDX
ERR
0
0
0
0
0
V
0
0
0
V
0
-
-
0
-
V
Table 214 Go To Power Condition subcommand
On successful completion of this EPC subcommand, the device:
1) stops all enabled EPC timers;
2) enters the selected EPC power condition after command completion of the SET FEATURES command
without having to wait for any timers to expire; and
3) the device remains in the selected power condition until the device processes the next command or reset.
Output Parameters To The Device
Sector Count
Power Condition ID (See Table 74)
Sector Number
bit
Description
7-4
Reserved
3-0
1h Go To Power Condition subcommand (See Table 73)
Error Output
If the Power condition ID is FFh, a reserved value, or is not supported, or if Extended Power Condition feature set is
disable, then the device returns command aborted .