User's Manual

Travelstar 5K160 (SATA) Hard Disk Drive Specification

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14.27 Security Disable Password (F6h)

Command Block Output Registers Command Block Input Registers

Data - - - - - - - - Data - - - - - - - -

Feature - - - - - - - - Error ...See Below...

Sector Count - - - - - - - - Sector Count - - - - - - - -

LBA Low - - - - - - - - LBA Low - - - - - - - -

LBA Mid - - - - - - - - LBA Mid - - - - - - - -

LBA High - - - - - - - - LBA High - - - - - - - -

Device - - - - - - - - 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

BSY RDY DF DSC DRQ COR IDX ERR

0 0 0 0 0 V 0 0 0 V 0 V - 0 0 V

Figure 63 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 “Password Information for Security Disable Password command”

on Page 5. 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-Mater, 0-User)

bit 1-15 : Reserved

01-16 Password (32 bytes)

17-255 Reserved

Figure 64 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.