Fujitsu MHY2200BS, MHY2160BS, MHY2120BS, MHY2040BS, MHY2080BS Contents of Security SET Password data

Interface

(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 5.36 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 5.37)

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

Table 5.35 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
	(This value is valid only when Word 0 Bit 0
	is set to one.)
18 to 255	Reserved

Table 5.36 Relationship between combination of Identifier and Security level, and operation of the lock function

Identifier	Level	Description
User	High	The specified password is set 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.
Master	High	The specified password is set as a new master password.
		The lock function is not enabled.
User	Maximum	The specified password is set 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	Maximum	The specified password is set as a new master password.
		The lock function is not enabled.

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