Sleep (E6H/99H) - Hitachi T7K250 - Deskstar - Hard Drive Specifications

12.42 Sleep (E6h/99h)

Table 125: Sleep command (E6h/99h)
Command Block Output Registers
Register
Data
Feature
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
Error Register
7 6 5
CRC UNC 0
0 0 0
This command causes the device to enter Sleep Mode.
The device is spun down and the interface becomes inactive. If the device is already spun down, the spin down
sequence is not executed.
A software reset or a hardware reset is the only way to recover from Sleep Mode.
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 D - - - -
1 1 1 0 0 1 1 0
4 3 2 1
IDN 0 ABT T0N AMN
0 0 V 0
Deskstar T7K250 Hard Disk Drive Specification
Command Block Input Registers
Register
Data
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
0 7 6 5
BSY RDY DF DSC DRQ
0 0 V 0
199
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
Status Register
4 3 2 1
COR IDX
V - 0 -
0
ERR
V