Interface
5-102 C141-E203-01EN
(31) 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 5.26 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 5.27)
Issuing this command in LOCKED MODE or FROZEN MODE returns the
Aborted Command error.
Table 5.26 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
18 to 255
Reserved
Table 5.27 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.
Summary of Contents for MHT2040BH
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