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7K200 SATA OEM Specification

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14.26 Security Disable Password (F6h)

Command Block Output Registers

Command Block Input Registers

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

- - - - -

- 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

CRC UNC 0

IDN

0 ABT T0N

BSY RDY

DF DSC DRQ

COR IDX

ERR

0 0 0 0 0 V 0 0

0 V 0 V - 0 0 V

Table 92 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 93 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.