5.3 Host Commands
C141-E042-01EN 5-15
Table 5.3 Command code and parameters (2 of 2)
Command code (Bit) Parameters used
76543210FRSCSNCYDH
IDLE IMMEDIATE 1
1
0
1
0
1
1
0
0
0
1
0
0
0
1
1
NNNND
STANDBY 1
1
0
1
0
1
1
0
0
0
1
0
1
1
0
0
NYNND
STANDBY IMMEDIATE 1
1
0
1
0
1
1
0
0
0
1
0
0
0
0
0
NNNND
SLEEP 1
1
0
1
0
1
1
0
1
0
0
1
0
1
1
0
NNNND
CHECK POWER MODE 1
1
0
1
0
1
1
0
1
0
0
1
0
0
0
1
NNNND
SMART 1 0 1 1 0 0 0 0 Y Y Y Y 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
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
Command name