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C141-E090-02EN 5 - 15
Table 5.4 Command code and parameters (2 of 2)
Command code (Bit) Parameters used
7 6 5 4 3 2 1 0 FR SC SN CY DH
STANDBY IMMEDIATE 1
1
0
1
0
1
1
0
0
0
1
0
0
0
0
0
N N N N D
SLEEP 1
1
0
1
0
1
1
0
1
0
0
1
0
1
1
0
N N N N D
CHECK POWER MODE 1
1
0
1
0
1
1
0
1
0
0
1
0
0
0
1
N N N N D
SMART 1 0 1 1 0 0 0 0 Y Y Y Y D
FLUSH CACHE 1 1 1 0 0 1 1 1 N N N N D
SECURITY DISABLE PASSWORD 1 1 1 1 0 1 1 0 N N N N D
SECURITY ERASE PREPARE 1 1 1 1 0 0 1 1 N N N N D
SECURITY ERASE UNIT 1 1 1 1 0 1 0 0 N N N N D
SECURITY FREEZE LOCK 1 1 1 1 0 1 0 1 N N N N D
SECURITY SET PASSWORD 1 1 1 1 0 0 0 1 N N N N D
SECURITY UNLOCK 1 1 1 1 0 0 1 0 N N N N D
SET MAX ADDRESS 1 1 1 1 1 0 0 1 N Y Y Y Y
READ NATIVE MAX ADDRESS 1 1 1 1 1 0 0 0 N N N N D
Notes:
FR : Features Register CY: Cylinder Registers
SC : Sector Count Register DH : Drive/Head Register
SN : Sector Number Register
R: R = 0 or 1
Y: Necessary to set parameters
Y*: Necessary to set parameters under the LBA mode.
N: Necessary to set parameters (The parameter is ignored if it is set.)
N*: May set parameters
D: The device parameter is valid, and the head parameter is ignored.
D*: The command is addressed to the master device, but both the master device and the
slave device execute it.
X: Do not care
Command name