Interface
(31) SECURITY SET PASSWORD (X’F1’)
This command enables a user password or master password to be set.
The host transfers the
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 | |
|
| |
18 to 255 | Reserved | |
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|
|
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. |
|
|
|
Master | High | The specified password is saved as a new master password. |
|
| The lock function is not enabled. |
|
|
|
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 | Maximum | The specified password is saved as a new master password. |
|
| The lock function is not enabled. |
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|
|