Datasheet

Z5K500 OEM Specifications

123

14.28 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 AMN BSY RDY DF DSC DRQ COR IDX ERR

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

Table 94 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 table. 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

Table 95 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.