4 check power mode (e5h) – FUJITSU MCM3064AP User Manual
Page 102

Host Interface
4-32
C156-E227-01EN
4.5.4 CHECK POWER MODE (E5h)
Table 4.22 CHECK POWER MODE command
Bit
7
6
5
4
3
2
1
0
CM
1
1
1
0
0
1
0
1
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 CHECK POWER MODE command sets the ODD power mode status in the
SC register, then notifies the host of the value in Table 4.23. When the drive is in
sleep mode, the interface is inactive and the ODD cannot receive this command.
Table 4.23 Power mode indication
Power mode status
SC register
Standby mode
00h
Entering standby mode
00h
Returning from standby mode
00h
Idle mode
FFh
Active mode
FFh
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