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ATA Bus Interface and ATA Commands
6-84 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
SET MAX UNLOCK
SET MAX UNLOCK
SET MAX UNLOCK
SET MAX UNLOCK
Command Code
Command Code
Command Code
Command Code
F9h with the content of the Features register equal to 03h.
Inputs
Inputs
Inputs
Inputs
Description
Description
Description
Description
This command requests a transfer of a single sector of data from the host. The Table
below defines the content of this sector of information.
The password supplied in the sector of data transferred will be compared with the
stored SET MAX password.
If the password comparison fails, then the device returns command aborted and
decrements the unlock counter. On the acceptance of the SET MAX LOCK
command, this counter is set to a value of five and will be decremented for each
password mismatch when SET MAX UNLOCK is issued and the device is locked.
When this counter reaches zero, then the SET MAX UNLOCK command will
return command aborted until a power cycle.
If the password compare matches, then the device will make a transition to the
Set_Max_Unlocked state and all SET MAX commands will be accepted.
Register
Register
Register
Register
7
77
7
6
66
6
5
55
5
4
44
4
3
33
3
2
22
2
1
11
1
0
00
0
Features
03h
Sector Count
na
Sector Number
na
Cylinder Low
na
Cylinder High
na
Device/Head
obs
na
obs
DEV
na
Command
F9h
WORD
WORD
WORD
WORD
CONTENT
CONTENT
CONTENT
CONTENT
0
Reserved
1 - 16
Password (32 bytes)
17 - 255
Reserved
Summary of Contents for FIREBALL PLUS AS 10.2
Page 12: ...About This Manual 1 4 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Page 16: ...General Description 2 8 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Page 61: ...Basic Principles of Operation Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT 5 16 ...
Page 62: ...Basic Principles of Operation 5 17 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Page 162: ...Index I 4 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...