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ATA Bus Interface and ATA Commands
Maxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT 6-13
The SET CONFIGURATION command is secured to prevent accessing it
accidentally. To access the SET CONFIGURATION command, you must write the
pattern shown in Table 6-8 to the Command Block Registers. The first byte, FFh, is
a subcode to the extended command code F0h.
Accessing the SET CONFIGURATION Command
Registers 1F2h through 1F5h must contain the exact values
shown above. These values function as a key. The drive responds
by setting the ABRT bit in the Error register if the key is not
entered correctly.
To select the drive being reconfigured, register 1F6h should be
set. For execution of the command to begin, load register 1F7h
with F0h
.
The SET CONFIGURATION WITHOUT SAVING TO DISK command is
secured to prevent accidentally accessing it. To access this command, you must write
the pattern shown in Table 6-9 to the Command Block Registers. The first byte, FEh,
is a subcode to the extended command code F0h.
Accessing the SET CONFIGURATION WITHOUT SAVING TO DISK Command
1F2h FFh Set Configuration Subcode
1F3h FFh Password
1F4h FFh Password
1F5h 3Fh Password
1F6h AXh
(Drive 0)
Drive Select
BXh
(Drive 1)
Drive Select
1F7h F0h Extended Command Code
1F2h FEh Set Configuration Subcode
1F3h FFh Password
1F4h FFh Password
1F5h 3Fh Password
1F6h AXh
(Drive 0)
Drive Select
BXh
Drive 1)
Drive Select
1F7h F0h Extended Command Code