Fujitsu MHU2100AT User Manual Page 116

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Interface
5-40 C141-E202-01EN
(16) CHECK POWER MODE (X’98’ or X’E5’)
The host checks the power mode of the device with this command.
The host system can confirm the power save mode of the device by the contents
of the Sector Count register.
The device sets the BSY bit and sets the following register value. After that, the
device clears the BSY bit and generates an interrupt.
Power save mode Sector Count register
During moving to Standby mode
• Standby mode
X’00’
Idle mode X’FF’
• Active mode X’FF’
At command issuance (I/O registers setting contents)
1F7
H
(CM) X’98’ or X’E5’
1F6
H
(DH) x x x DV xx
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(FR)
xx
xx
xx
xx
xx
At command completion (I/O registers contents to be read)
1F7
H
(ST) Status information
1F6
H
(DH) x x x DV xx
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(ER)
xx
xx
xx
X’00’ or X’FF’
Error information
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