Master Password Revision Code; Operation Example; Figure 63. Initial Setting - IBM IC25N040ATCS04 - Travelstar 40 GB Hard Drive Specifications

11.9.4 Master Password Revision Code

This Master Password Revision Code is set by Security Set Password command with the master pass-
word. And this revision code field is returned in the Identify Device command word 92. The valid revision
codes are 0001h to FFFEh. The default value of Master Password Revision Code is FFFEh. Values 0000h
and FFFFh are reserved.

11.9.5 Operation example

11.9.5.1 Master Password setting
The system manufacturer or dealer can set an initial Master Password using the Security Set Password
command, without enabling the Device Lock Function.
11.9.5.2 User Password setting
When a User Password is set, the device will automatically enter lock mode the next time the device is
powered on.
< Setting password >
< No setting password >
POR POR
Set Password with User Password Normal operation
Normal operation Power off
POR
Device unlocked mode
Power off
POR Device locked mode

Figure 63. Initial setting

Travelstar 60GH & 40GN hard disk drive specifications
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