Travelstar 5K160 (PATA) Hard Disk Drive Specification
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14.26 Security Disable Password (F6h)
Command Block Output Registers
Command Block Input Registers
Register
7 6 5 4 3 2 1 0 Register
7 6 5 4 3 2 1 0
Data
- - - -
-
-
-
- Data
- - - - - -
-
-
Feature
- - - -
-
-
-
- Error
...See
Below...
Sector
Count
- - - -
-
-
-
- Sector
Count
- - - - - -
-
-
LBA
Low
- - - -
-
-
-
- LBA
Low
- - - - - -
-
-
LBA
Mid
- - - -
-
-
-
- LBA
Mid
- - - - - -
-
-
LBA
High
- - - -
-
-
-
- LBA
High
- - - - - -
-
-
Device
- - - D -
-
-
- Device
- - - - - -
-
-
Command
1 1 1 1 0 1 1 0 Status
...See
Below...
Error Register
Status Register
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
CRC UNC 0
IDN
0 ABT T0N
AM
N
BSY RDY
DF DSC DRQ
COR IDX
ERR
0 0 0 0 0 V 0 0
0 V 0 V - 0 - V
Figure 86 Security Disable Password Command (F6h)
The Security Disable Password command disables the security mode feature ( device lock function).
The Security Disable Password command requests a transfer of a single sector of data from the host including
information specified in the following figure. Then the device checks the transferred password. If the User Password
or Master Password matches the given password, the device disables the security mode feature (device lock
function). This command does not change the Master Password which may be re-activated later by setting User
Password. This command should be executed in device unlock mode.
Word Description
00 Control
word
bit 0
: Identifier (1-Master, 0-User)
bit 1-15
: Reserved
01-16 Password
(32
bytes)
17-255 Reserved
Figure 87 Password Information for Security Disable Password command
The device will compare the password sent from this host with that specified in the control word.
Identifier
Zero indicates that the device should check the supplied password against the user password
stored internally. One indicates that the device should check the given password against the
master password stored internally.