Fujitsu MHC2032AT Product Manual page 121

Interface
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 excuted if no command is coming for
1F7
1F6
1F5
1F4
1F3
1F2
1F1
1F7
1F6
1F5
1F4
1F3
1F2
1F1
(24) STANDBY IMMEDIATE (X'94' or X'E0')
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. This command does not support the automatic power-down sequence.
5-50
30 min. (default)
At command issuance (I/O registers setting contents)
(CM) X'96' or X'E2'
H
(DH)
H
(CH) xx
H
(CL) xx
H
(SN) xx
H
(SC) Period of timer
H
(FR) xx
H
At command completion (I/O registers contents to be read)
(ST) Status information
H
(DH)
H
(CH) xx
H
(CL) xx
H
(SN) xx
H
(SC) xx
H
(ER) Error information
H
DV xx
DV xx
C141-E050-02EN