5.3 Host Commands

(29) SECURITY SET PASSWORD (X’F1’)

This command enables a user password or master password to be set.

The host transfers the 512-byte data shown in Table 5.24 to the device. The device determines the operation of the lock function according to the specifications of the Identifier bit and Security level bit in the transferred data. (Table 5.25)

Issuing this command in LOCKED MODE or FROZEN MODE returns the Aborted Command error.

Table 5.24 Contents of SECURITY SET PASSWORD data

Word

 

Contents

0

Control word

 

Bit 0 Identifier

 

0

= Sets a user password.

 

1

= Sets a master password.

 

Bits 1 to 7 Reserved

 

Bit 8 Security level

 

0

= High

 

1

= Maximum

 

Bits 9 to 15 Reserved

1 to 16

Password (32 bytes)

 

 

17

Master password version number

 

(Valid is Bit 0=1)

18 to 255

Reserved

 

 

 

Table 5.25 Relationship between combination of Identifier and Security level, and operation of the lock function

Identifier

Level

Description

User

High

The specified password is saved as a new user password.

 

 

The lock function is enabled after the device is turned off

 

 

and then on. LOCKED MODE can be canceled using the

 

 

user password or the master password already set.

User

Maximum

The specified password is saved as a new user password.

 

 

The lock function is enabled after the device is turned off

 

 

and then on. LOCKED MODE can be canceled using the

 

 

user password only. The master password already set

 

 

cannot cancel LOCKED MODE.

Master

High or

The specified password is saved as a new master password.

 

Maximum

The lock function is not enabled.

C141-E258

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Fujitsu MHW2040AC, MHW2060AC manual Contents of Security SET Password data

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