Sleep (E6H/99H) - IBM DTCA-23240 - Travelstar 3.2 GB Hard Drive Specifications
(3240/4090 mb) 2.5-inch hard disk drive with ata interface
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12.29 Sleep (E6h/99h)
C o m m a n d B l o c k O u t p u t R e g i s t e r s
R e g i s t e r
D a t a
F e a t u r e
S e c t o r C o u n t
S e c t o r N u m b e r
C y l i n d e r L o w
C y l i n d e r H i g h
D e v i c e / H e a d
C o m m a n d
E r r o r R e g i s t e r
7
6
5
C R C U N C
0
I D N
0
0
0
Figure 93. Sleep Command (E6h/99h)
This command is the only way to cause the device to enter Sleep Mode.
When this command is issued, the device confirms the completion of the cached write commands before it
asserts INTRQ.
Then the device is spun down, and the interface becomes inactive.
recover from Sleep Mode is with a software reset or a hardware reset.
The use of hardware reset to recover from Sleep Mode may be incompatible with continued operation of the
host system.
If the device is already spun down, the spin down sequence is not executed.
7 6 5 4 3 2 1 0
1
1 D
1 1 1 0 0 1 1 0
4
3
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1
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A B T T 0 N A M N
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V
0
0
C o m m a n d B l o c k I n p u t R e g i s t e r s
R e g i s t e r
7 6 5 4 3 2 1 0
D a t a
E r r o r
. . . S e e B e l o w . . .
S e c t o r C o u n t
S e c t o r N u m b e r
C y l i n d e r L o w
C y l i n d e r H i g h
D e v i c e / H e a d
S t a t u s
. . . S e e B e l o w . . .
S t a t u s R e g i s t e r
7
6
5
4
3
B S Y R D Y D F
D S C D R Q C O R I D X E R R
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V
0
V
Command Descriptions
2
1
0
0
V
The only way to
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