Fujitsu MHM2100AT - Mobile 10 GB Hard Drive Product Manual page 136

At command completion (I/O registers contents to be read)
1F7 (ST)
H
1F6 (DH)
H
1F5 (CH)
H
1F4 (CL)
H
1F3 (SN)
H
1F2 (SC)
H
1F1 (ER)
H
(25) STANDBY (X'96' or X'E2')
Upon receipt of this command, the device sets the BSY bit of the Status register
and enters the standby mode. The device then clears the BSY bit and generates an
interrupt. The device generates an interrupt even if the device has not fully
entered the standby mode. If the device has already spun down, the spin-down
sequence is not implemented.
By using this command, the automatic power-down function is enabled and the
timer starts the countdown when the device returns to idle mode.
When the timer value reaches 0 (a specified time has padded), the device enters
standby mode.
Under the standby mode, the spindle motor is stopped. Thus, when the command
involving a seek such as the READ SECTOR(s) command is received, the device
processes the command after driving the spindle motor.
attention: The automatic power-down is executed if no command is coming for
At command issuance (I/O registers setting contents)
1F7 (CM)
H
1F6 (DH)
H
1F5 (CH)
H
1F4 (CL)
H
1F3 (SN)
H
1F2 (SC)
H
1F1 (FR)
H
C141-E104-03EN
Status information
x x x DV
xx
xx
xx
xx
Error information
30 min.
X'96' or X'E2'
x x x DV
xx
xx
xx
Period of timer
xx
5.3 Host Commands
xx
xx
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