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 field after executing this command.
The device sets the following field value. After that, the device reports the status
to the host system.
Power save mode
Sector Count field
• During moving to Standby mode
• Standby
mode
X’00’
• Idle mode
X’FF’
• Active
mode
X’FF’
•
Error reporting conditions
(1) A SATA communication error occurred (ST = 51h, ER = 14h).
At command issuance (Shadow Block Registers setting contents)
CM
X’98’ or X’E5’
DH
x x x x
xx
CH
CL
SN
SC
FR
xx
xx
xx
xx
xx
At command completion (Shadow Block Registers contents to be read)
ST Status
information
DH
x x x x
xx
CH
CL
SN
SC
ER
xx
xx
xx
X’00’ or X’FF’
Error information
C141-E249
5-53
Summary of Contents for MHW2040BS
Page 1: ...C141 E249 01EN MHW2120BS MHW2100BS MHW2080BS MHW2060BS MHW2040BS DISK DRIVES PRODUCT MANUAL ...
Page 4: ...This page is intentionally left blank ...
Page 8: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 12: ...This page is intentionally left blank ...
Page 42: ...This page is intentionally left blank ...
Page 54: ...This page is intentionally left blank ...
Page 74: ...This page is intentionally left blank ...
Page 86: ...Interface Figure 5 2 Example of the circuit for driving Ready LED 5 12 C141 E249 ...
Page 256: ...This page is intentionally left blank ...
Page 278: ...This page is intentionally left blank ...
Page 282: ...This page is intentionally left blank ...
Page 284: ...This page is intentionally left blank ...
Page 292: ...This page is intentionally left blank ...
Page 294: ......
Page 295: ......
Page 296: ......