Travelstar 5K160 (SATA) Hard Disk Drive Specification

14.29Security Erase Unit (F4h)

Command Block Output Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Command Block Input Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

Register

 

 

 

7

6

 

 

5

 

4

 

 

3

 

 

2

 

1

 

 

0

 

 

Register

 

 

 

7

6

 

 

 

5

 

4

3

2

 

1

 

0

Data

 

 

 

 

-

-

 

-

 

-

 

-

 

 

-

 

-

 

 

-

 

 

Data

 

 

 

 

-

-

 

-

-

-

-

 

-

 

-

Feature

 

 

 

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-

 

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-

 

 

-

 

 

Error

 

 

 

 

 

 

 

...See Below...

 

 

 

Sector Count

 

 

 

-

-

 

 

 

-

 

-

 

 

 

-

 

 

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-

 

 

Sector Count

 

 

 

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-

LBA Low

 

 

 

-

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-

 

-

 

 

 

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-

 

-

 

 

-

 

 

LBA Low

 

 

 

-

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-

 

-

-

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-

 

-

LBA Mid

 

 

 

-

-

 

-

 

-

 

-

 

 

-

 

-

 

 

-

 

 

LBA Mid

 

 

 

-

-

 

 

-

 

-

-

-

 

-

 

-

LBA High

 

 

 

-

-

 

-

 

-

 

-

 

 

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-

 

 

-

 

 

LBA High

 

 

 

-

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-

 

-

-

-

 

-

 

-

Device

 

 

 

 

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Device

 

 

 

 

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Command

 

 

 

1

1

 

1

 

1

 

0

 

 

1

 

0

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

0

0

V

 

0

 

 

 

 

 

V

 

0

 

 

 

 

0

 

 

 

 

0

 

V

0

V

-

 

 

0

 

 

0

 

 

V

 

Figure 66 Security Erase Unit Command (F4h)

The Security Erase Unit command initializes all user data sectors, then disables the device lock function.

Note that the Security Erase Unit command initializes from LBA 0 to Native Max LBA. Host Max LBA set by Initialize Drive Parameter or Set Max Address command is ignored. So the protected area by Set Max Address command is also initialized.

This command requests to transfer a single sector data from the host including information specified in “Erase Unit Information” on Page 5.

If the password does not match then the device rejects the command with an Aborted error.

 

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 67 Erase Unit Information

 

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.

The Security Erase Unit command erases all user data and disables the security mode feature (device lock function). So after completing this command, all user data will be initialized to zero with write operation. At this time, it is not verified with read operation whether the sector of data is initialized correctly. Also, the defective sector information and the reassigned sector information for the device are not updated. The security erase prepare command should be completed immediately prior to the Security Erase Unit command. If the device receives a Security Erase Unit command without a prior Security Erase Prepare command the device aborts the security erase unit command.

This command disables the security mode feature (device lock function), however the master password is still stored internally within the device and may be re-activated later when a new user

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Hitachi HTS541616J9SA00, HTS541640J9SA00, HTS541680J9SA00, HTS541660J9SA00 manual Security Erase Unit F4h, Identifier
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