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PRELIMINARY/CONFIDENTIAL
20 MACH2 2.5-Inch Serial ATA Solid State Drive
READ/VERIFY EXTENDED 42h This command is mandatory for devices that implement the 48-bit
Address feature set. The command is identical to the Read
Sector(s) Extended (24) command, except that no data is
transferred from the device to the host. The device will read the
data stored in the media and verify that no errors exist.
RECALIBRATE 10h The SSD performs only the interface timing and register
operations. When this command is issued, the SSD sets BSY and
waits for an appropriate length of time, after which it clears BSY
and issues an interrupt. When this command ends normally, the
SSD is initialized.
SECURITY DISABLE PASSWORD F6h This command is mandatory for devices that implement the
Security Mode feature set. The command will transfer 512 bytes
of predefined data from the host. If the password selected by
Word 0 matches the password that was previously saved by the
device, the device shall disable Lock mode. The command will
not change the Master password. The Master password is
reactivated when a User password is set. The command will only
complete successfully if the device is in Unlocked mode.
SECURITY ERASE PREPARE F3h This command is mandatory for devices that implement the
Security Mode feature set. The command is issued immediately
before the Security Erase Unit (F4h) command to enable device
erasing and unlocking. The command prevents accidental loss of
data on the device.
SECURITY ERASE UNIT F4h This command is mandatory for devices that implement the
Security Mode feature set. The command will transfer 512 bytes
of predefined data from the host. If the password does not match
the password previously saved by the device, the device shall
reject the command and abort it. When a Normal Erase mode is
specified, the Security Erase Unit command shall write binary
zeros to all user data areas. If the optional Enhanced Erase mode
is specified, the device shall write predetermined data patterns to
all user data areas; the current data is overwritten, including
sectors that are no longer in use due to reallocation.
SECURITY FREEZE LOCK F5h This command is mandatory for devices that implement the
Security Mode feature set. The command shall set the device to
Frozen mode. Other commands that update the device Lock
mode are aborted. Frozen mode can be disabled by a power-off
or hardware reset. If the command is issued while the device is in
Frozen mode, the command is executed and the device will
remain in Frozen mode.
SECURITY SET PASSWORD F1h This command is mandatory for devices that implement the
Security Mode feature set. The command will transfer 512 bytes
of predefined data from the host. The data controls the function of
this command, which in turn defines the interaction of the
identifier and security level bits. The user can in turn set the
Master or User passwords, and the security level of the device.
SECURITY UNLOCK F2h This command is mandatory for devices that implement the
Security Mode feature set. The command will transfer 512 bytes
of predefined data from the host. The data controls the function of
this command, which in turn defines the interaction of the
Identifier bit. If the Identifier bit is set to Master and the current
security level is high, the password is compared with the stored
Master password. If the device is in maximum security level then
the unlock shall be rejected. If the Identifier bit is set to User, then
the device shall compare the supplied password with the stored
User password. If the password comparison fails, the device shall
abort the command and report a decrease in the incremental
value in the unlock counter.
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