HITACHI Deskstar & CinemaStar 7K1000.B & Deskstar E7K1000 Hard Disk Drive specification 
198 
11.38.2  Set Max Lock (Feature = 02h) 
 
Command Block Output Registers 
Command Block Input Registers 
 
Table 143    Set Max Lock 
 
The device regards as Set Max Address command, if this command is immediately preceded by a Read Native 
Max Address command. 
This command sets the device into Set_Max_Locked state. After this command is completed any other Set Max 
commands except Set Max Unlock and Set Max Freeze Lock are rejected. The device remains in this state until 
a power cycle or the acceptance of a Set Max Unlock or Set Max Freeze Lock command.