Security Set Password [F1H] - Hitachi C4K60 - Travelstar Slim - Hard Drive Specifications

7.5.32. Security Set Password [F1h]

Task File Registers
Command
LBA High
LBA Mid
LBA Low
Device/Head
Sector Count
Features
The SECURITY SET PASSWORD command requests a transfer of a single sector of data from the host. The
following table defines the content of this sector of information. The data transferred controls the function of this
command. The revision code field is returned in the IDENTIFY DEVICE Word 92. The valid revision codes are
0000h to FFFDh. The initial factory shipped value of Master Password Revision code is FFFEh. Value FFFFh is
revised.
Word
0 Control Word
bit 15-9 Reserved
bit 8
bit 7
bit 0
1-16 Password(32bytes)
17 Mater Password Revision Code (Valid if word 0 bit 0 = 1)
18 - 255 Reserved
The following table defines the interaction of the identifier and security level bits.
Identifier Security Level
User High
User Maximum
Master High or
Maximum
The device returns aborted command error if the device is in Locked mode or Frozen mode.
K6610170
Rev.2
Dec 22, 2004
7 6
X X
Table 7.22 Password Data Format
Security Level 0 = High, 1 = Maximum
Reserved
Identifier 0 = Set user password, 1 = Set master password
Table 7.23 Security Level and Identifier
The password supplied with the command is saved as the new user
password. The lock function will be enabled from the next power-on or
hardware reset. The device will then be unlocked by either the user
password or the previously set master password.
The password supplied with the command is saved as the new user
password. The lock function will be enabled from the next power-on or
hardware reset. The device will then be unlocked by only the user
password. The master password previously set is still stored in the device
but shall not be used to unlock the device.
This combination set a mater password, but will not enable the security
mode feature. The security level is not changed. Master password
revision code set to the value in Master Password Revision Code field.
5 4 3 2
F1h
XX
XX
XX
X DRV X X
XX
XX
Contents
Command Result
- 94 -
1 0
X X