Western Digital Ultrastar DC HC310 - Table 215 Set Power Condition Timer Subcommand

247
Western Digital Hard Disk Drive OEM Specification
11.46.6.3 Set Power Condition Timer 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
V
-
V
V
0
0
1
0
Sector Number
-
-
-
-
-
-
-
-
Cylinder Low
V
V
V
V
V
V
V
V
Cylinder Low
-
-
-
-
-
-
-
-
Cylinder High
V
V
V
V
V
V
V
V
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 215 Set Power Condition Timer subcommand
On successful completion of this EPC subcommand, the device updates the Power Conditions log for the selected
and supported Power Condition as follows:
1) copy the Timer field to the Current Timer Settings field;
2) if Enable is set to one and the Timer field is non-zero, then enable the Current Timer;
3) if Enable is set to one and the Timer field is zero, then disable the Current Timer;
4) if Enable is cleared to zero, then disable the Current Timer; and
5) if Save is set to one and the Power Condition settings are savable, then:
A) copy the Current Timer Settings field to the Saved Timer Settings field; and
B) copy the Current Timer Enabled field to the Saved Timer Enabled field.