11 sleep (x'99'/x'e6') – FUJITSU MCE3130AP User Manual
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C156-E142-02EN
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Table 4.35 Cylinder High register
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0
0
0
0
0
POWER_EJ
LOCK
PRV_ENAB
POWER_EJ: Set to 1.
LOCK: Set to 1.
PRV_ENAB: Set to 1 when the media status notification function is enabled.
4.5.11 SLEEP (X'99'/X'E6')
Table 4.36 SLEEP command
Bit
7
6
5
4
3
2
1
0
CM
1
0
0
1
1
0
0
1
1
1
1
0
0
1
1
0
DH
X
X
X
DRV
X
X
X
X
CH
X
X
X
X
X
X
X
X
CL
X
X
X
X
X
X
X
X
SN
X
X
X
X
X
X
X
X
SC
X
X
X
X
X
X
X
X
FR
X
X
X
X
X
X
X
X
The SLEEP command sets the ODD in sleep mode. The ODD enters sleep mode by following the
steps given below.
1. The ODD spins down media.
2. The ODD issues an interrupt to the host to report command end. After the host receives the
interrupt, the ODD deactivates the interface. Once the interface becomes inactive, the
ODD ignores all resets except software reset and hardware reset.
A software reset or hardware reset is required for a return from sleep mode.
Software reset is recommended for returning from sleep mode.