5.3 Host Commands
C141-E057-01EN 5-15
Table 5.3 Command code and parameters (2 of 2)
Command code (Bit)
Parameters used
76543210FR SC SN CY DH
IDLE IMMEDIATE
1
1
0
1
0
1
1
0
0
0
1
0
0
0
1
1NNNN D
STANDBY
1
1
0
1
0
1
1
0
0
0
1
0
1
1
0
0NYNN D
STANDBY IMMEDIATE
1
1
0
1
0
1
1
0
0
0
1
0
0
0
0
0NNNN D
SLEEP
1
1
0
1
0
1
1
0
1
0
0
1
0
1
1
0NNNN D
CHECK POWER MODE
1
1
0
1
0
1
1
0
1
0
0
1
0
0
0
1NNNN D
SMART 10110000YYYY D
SECURITY DISABLE PASSWORD
11110110NNNN D
SECURITY ERASE PREPARE
11110011NNNN D
SECURITY ERASE UNIT
11110100NNNN D
SECURITY FREEZE LOCK
11110101NNNN D
SECURITY SET PASSWORD
11110001NNNN D
SECURITY UNLOCK
11110010NNNN D
FLUSH CACHE
11100111NNNN 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