
5.3 Host Commands
(14) 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
(15) SLEEP (X’99’ or X’E6’)
This command is the only way to make the device enter the sleep mode.
C141-E258
5-39
Содержание MHW2040AC
Страница 1: ...C141 E258 03EN MHW2060AC MHW2040AC DISK DRIVES PRODUCT MANUAL ...
Страница 4: ...This page is intentionally left blank ...
Страница 8: ...This page is intentionally left blank ...
Страница 10: ...This page is intentionally left blank ...
Страница 12: ...This page is intentionally left blank ...
Страница 38: ...This page is intentionally left blank ...
Страница 56: ...This page is intentionally left blank ...
Страница 76: ...This page is intentionally left blank ...
Страница 264: ...This page is intentionally left blank ...
Страница 266: ...This page is intentionally left blank ...
Страница 272: ...This page is intentionally left blank ...
Страница 274: ...This page is intentionally left blank ...
Страница 276: ......
Страница 277: ......
Страница 278: ......