Quantum FIREBALL PLUS AS 10.2 Product Manual page 101

PREREQUISITES - DRDY set equal to one. SMART enabled.
DESCRIPTION - This command disables all SMART capabilities within the device
including any and all timer functions related exclusively to this feature. After receipt
of this command the device will disable all SMART operations. Attribute values will
no longer be monitored or saved by the device. The state of SMART (either enabled
or disabled) will be preserved by the device across power cycles.
Upon receipt of the SMART DISABLE OPERATIONS command from the host, the
device sets BSY, disables SMART capabilities and functions, clears BSY and asserts
INTRQ.
After receipt of this command by the device, all other SMART commands, with the
exception of SMART ENABLE OPERATIONS, are disabled and invalid and shall
be aborted by the device (including SMART DISABLE OPERATIONS commands),
returning the Aborted command error.
6.7.9.1 6.7.9.1 6.7.9.1 6.7.9.1 SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE
COMMAND CODE - B0h
TYPE - Optional - SMART Feature set. If the SMART feature set is implemented,
this command is optional and not recommended.
PROTOCOL - Non-data command
INPUTS - The Features register shall be set to D2h. The Cylinder Low register shall
be set to 4Fh. The Cylinder High register shall be set to C2h. The Sector Count
register is set to 00h to disable attribute autosave and a value of F1h is set to enable
attribute autosave.
Register Register
Register Register
Features
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
7 7 7 7 6 6 6 6 5 5 5 5
1 1
Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
ATA Bus Interface and ATA Commands
4 4 4 4 3 3 3 3 2 2 2 2
D2h
00h or F1h
4Fh
C2h
D
B0h
1 1 1 1 0 0 0 0
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