13.21 Security Disable Password (F6h)
see belowStatus1 1 1 1 0 1 1 0Command
- - - - - - - -Device/Head1 - 1 D - - - -Device/Head
- - - - - - - -Cylinder High- - - - - - - -Cylinder High
- - - - - - - -Cylinder Low- - - - - - - -Cylinder Low
- - - - - - - -Sector Number- - - - - - - -Sector Number
- - - - - - - -Sector Count- - - - - - - -Sector Count
see belowError- - - - - - - -Feature
- - - - - - - -Data- - - - - - - -Data
7 6 5 4 3 2 1 0Register7 6 5 4 3 2 1 0Register
Command Block Input RegistersCommand Block Output Registers
V-0-V0V000V00000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCCRC
0123456701234567
Status RegisterError Register
Figure 100. 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 Figure 101. 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
reactivated later by setting User Password. This command should be executed in device unlock mode.
Reserved17–255
Password (32 bytes)01–16
Control word
bit 0 : Identifier (1–Master, 0–User)
bits 1–15 : Reserved
00
DescriptionWord
Figure 101. 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.
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
152
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