C141-E072-01EN 5 - 15
Table 5.4 Command code and parameters (2 of 2)
Command code (Bit) Parameters used
76543210FR SC SN CY DH
STANDBY IMMEDIATE 1
10
10
11
00
01
00
00
0N N NN D
SLEEP 1
10
10
11
01
00
10
11
0N N NN D
CHECK POWER MODE 1
10
10
11
01
00
10
00
1N N NN D
SMART 10110000Y Y YY D
FLUSH CACHE 11100111N N NN D
SECURITY DISABLE PASSWORD 11110110N N N N D
SECURITY ERASE PREPARE 11110011N N N N D
SECURITY ERASE UNIT 11110100N N N N D
SECURITY FREEZE LOCK 11110101N N N N D
SECURITY SET PASSWORD 11110001N N N N D
SECURITY UNLOCK 11110010N N N N D
SET MAX ADDRESS 11111001N Y Y Y Y
READ NATIVE MAX ADDRESS 11111000N N N N D
Notes:
FR : Features Register CY: Cylinder Registers
SC : Sector Count Register DH : Drive/Head Register
SN : Sector Number Register
R: Retry at error
1 = Without retry 0 = With retry
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