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IDE Solid State Disk
(15) Set Sleep Mode- 99h or E6h
Bit ->
7
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
This command causes the device to set BSY, enter the Sleep mode, clear BSY and generate an interrupt. Recovery
from sleep mode is accomplished by simply issuing another command (a reset is permitted but not required). Sleep
mode is also entered when internal timers expire so the host does not need to issue this command except when it
wishes to enter Sleep mode immediately. The default value for the timer is 5 milliseconds. Note that this time base (5
msec) is different from the ATA Specification.
(16) Standby - 96h or E2h
Bit ->
7
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
This command causes the device to set BSY, enter the Sleep mode (which corresponds to the ATA "Standby" Mode),
clear BSY and return the interrupt immediately. Recovery from sleep mode is accomplished by simply issuing another
command (a reset is not required).
(17) Standby Immediate - 94h or E0h
Bit ->
7
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
This command causes the device to set BSY, enter the Sleep mode (which corresponds to the ATA "Standby" Mode),
clear BSY and return the interrupt immediately. Recovery from sleep mode is accomplished by simply issuing another
command (a reset is not required).
Rev. A.6
6
5
X
Drive
Set Sleep Mode
6
5
X
Drive
Standby
6
5
X
Drive
Standby Immediate
25/32
4
3
99h or E6h
X
X
X
X
X
4
3
96h or E2h
X
X
X
X
X
4
3
94h or E0h
X
X
X
X
X
2
1
X
2
1
X
2
1
X
Nov. 2008
0
0
0
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