Hitachi 7K100 Hard Drive Specifications - Page 176

Sleep E6h/99h

Page 176 highlights

13.38 Sleep (E6h/99h) Table 113: Sleep (E6h/99h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count LBA Low LBA Mid LBA High Device 1 - 1 D - - - - Command 1 1 0 0 0 1 1 0 76 CRC UNC 00 Error Register 54 3 2 1 0 0 IDN 0 ABT T0N AMN 00 0 V 0 0 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count LBA Low LBA Mid LBA High Device Status see below Status Register 7 654 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0 V0V - 0 - V 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. The only way to 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. Travelstar 7K100 Hard Disk Drive Specification 162

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Travelstar 7K100 Hard Disk Drive Specification
162
13.38
Sleep (E6h/99h)
Table 113: Sleep (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. The only way to 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.
Command Block Output Registers
Command Block Input Registers
Register
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Data
- - - - - - - -
Data
- - - - - - - -
Feature
- - - - - - - -
Error
see below
Sector Count
- - - - - - - -
Sector Count
- - - - - - - -
LBA Low
- - - - - - - -
LBA Low
- - - - - - - -
LBA Mid
- - - - - - - -
LBA Mid
- - - - - - - -
LBA High
- - - - - - - -
LBA High
- - - - - - - -
Device
1 - 1 D - - - -
Device
- - - - - - - -
Command
1 1 0 0 0 1 1 0
Status
see below
Error Register
Status Register
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CRC UNC 0 IDN 0 ABT T0N AMN
BSY RDY DF DSC DRQ COR IDX ERR
0
0
0
0
0
V
0
0
0
V
0
V
-
0
-
V