CHECK
POWER MODE (E5h)
Inputs:
Register
|
7
|
6
|
5
|
4
|
3
|
2
|
1
|
0
|
|
Features
|
Current
|
N/A
|
|||||||
Previous
|
N/A
|
||||||||
Sector
Count
|
Current
|
N/A
|
|||||||
Previous
|
N/A
|
||||||||
LBA
Low
|
Current
|
N/A
|
|||||||
Previous
|
N/A
|
||||||||
LBA
Mid
|
Current
|
N/A
|
|||||||
Previous
|
N/A
|
||||||||
LBA
High
|
Current
|
N/A
|
|||||||
Previous
|
N/A
|
||||||||
Device
|
obs
|
N/A
|
obs
|
TD
|
Reserved
|
||||
Command
|
E5h
|
||||||||
Transport Dependent (TD): All bits and
fields that are labeled transport dependent are defined in the transport
standards.
Normal
Outputs:
Register
|
7
|
6
|
5
|
4
|
3
|
2
|
1
|
0
|
|
Error
|
N/A
|
||||||||
Sector
Count
|
HOB
|
Value Description
00h Device is in the:
a)
PM2:Standby state and
Extended Power Conditions feature set is not supported; or
b)
PM2:Standby state, the
Extended Power Conditions feature set is supported, and the device is in the
Standby_z power condition.
01h Device is in the
PM2:Standby state, the Extended Power Conditions feature set is supported,
and the device is in the Standby_y power condition.
02h..3Fh Reserved
40h Device is:
a) in the PM0:Active state;
b) the NV Cache power mode is enabled;
and
c) the spindle is spun down or spinning
down.
41h Device is:
a) in the PM0:Active state;
b) the NV Cache power mode is enabled;
and
c) the spindle is spun up or spinning up.
42h..7Fh Reserved
80h Device is in
the
a)
PM1:Idle state and Extended
Power Conditions feature set is not supported; or
b)
PM1:Idle state, Extended
Power Conditions feature set is supported, and APM is enabled.
81h Device is in the PM1:Idle
State, Extended Power Conditions feature set is supported, and the device is
in the Idle_a power condition.
82h Device is in the PM1:Idle
State, Extended Power Conditions feature set is supported, and the device is
in the Idle_b power condition.
83h Device is in the PM1:Idle
State, Extended Power Conditions feature set is supported, and the device is
in the Idle_c power condition.
84h..FEh Reserved
FFh Device is in the
PM0:Active state or PM1:Idle State.
|
|||||||
LBA
Low
|
HOB
= 0
|
N/A
|
|||||||
HOB
= 1
|
N/A
|
||||||||
LBA
Mid
|
HOB
= 0
|
N/A
|
|||||||
HOB
= 1
|
N/A
|
||||||||
LBA
High
|
HOB
= 0
|
N/A
|
|||||||
HOB
= 1
|
N/A
|
||||||||
Device
|
obs
|
na
|
obs
|
TD
|
Reserved
|
||||
Status
|
TD
|
DF
|
na
|
TD
|
na
|
na
|
ERR
|
||
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