Hitachi HUS154530VLF400 User Manual

Page of 417
                                    
Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
192   
19.10.13  Mode Page 1A (Power Control)
Table 159: Page 1A (Power Control)
• Idle  bit of one indicates that the Target shall use the Idle Condition Timer  to determine the length of inactivity time to 
wait before entering the Idle power state.  An Idle bit of zero indicates that the Target shall not enter the Idle power 
state.
 Idle Condition Timer field indicates the inactivity time in 100 millisecond increments that the Target shall wait before 
entering the Idle power state.  The minimum allowable inactivity time is 2 minutes. Any value less than this is 
accepted, but will automatically default to 2 minutes.
• Standby bit of one indicates that the Target shall use the Standby Condition Timer to determine the length of inactivity 
time to wait before entering the Standby power state. A Standby bit of zero indicates that the Target shall not enter the 
Standby power state.
• Standby Condition Timer field indicates the inactivity time in 100 millisecond increments that the Target shall wait 
before entering the Standby power state. The minimum allowable inactivity time is 2 minutes. Any value less than 
this is accepted, but will automatically default to 2 minutes.
Byte
Bit
7
6
5
4
3
2
1
0
Default
0
PS
0
Page Code = 1Ah
9Ah
1
Page  Length  =  0Ah
0Ah
2
Reserved = 00h
00h
3
Reserved = 0
Idle
Standby
00h
4-7
(MSB)
Idle Condition Timer  
(LSB)
00h
8-11
(MSB)
Standby Condition Timer
(LSB)
00h