Hitachi HDS721050CLA362 - Table 145 Set Max Unlock (F9 H)

HITACHI Deskstar & CinemaStar 7K1000.B & Deskstar E7K1000 Hard Disk Drive specification
199
11.38.3 Set Max Unlock (Feature = 03h)
Command Block Output Registers
Command Block Input Registers
Register
7
6
5
4
3
2
1
0
Register
7
6
5
4
3
2
1
0
Data
-
-
-
-
-
-
-
-
Data
-
-
-
-
-
-
-
-
Feature
0
0
0
0
0
0
1
1
Error
…See Below…
Sector Count
-
-
-
-
-
-
-
-
Sector Count
-
-
-
-
-
-
-
-
Sector Number
-
-
-
-
-
-
-
-
Sector Number
-
-
-
-
-
-
-
-
Cylinder Low
-
-
-
-
-
-
-
-
Cylinder Low
-
-
-
-
-
-
-
-
Cylinder High
-
-
-
-
-
-
-
-
Cylinder High
-
-
-
-
-
-
-
-
Device/Head
1
-
1
D
-
-
-
-
Device/Head
1
-
1
D
-
-
-
-
Command
1
1
1
1
1
0
0
1
Status
…See Below…
Error Register
Status Register
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CRC
UNC
0
IDN
0
ABT
T0N
AMN
BSY
RDY
DF
DSC
DRQ
COR
IDX
ERR
0
0
0
0
0
V
0
0
0
V
0
-
-
0
-
V
Table 144 Set Max Unlock (F9h)
The device regards as Set Max Address command, if this command is immediately preceded by a Read Native
Max Address command.
This command requests a transfer of a single sector of data from the host including the information specified in
Table 141 on the page 197 with the stored SET MAX password.
If the password compare fails then the device returns an abort error to the host and decrements the unlock
attempt counter. This counter is initially set to 5 and is decremented for each password mismatch. When this
counter reaches zero then all Set Max Unlock commands are rejected until a hard reset or a power off.
If the password compares matches, then the device set the Set_Max_Unlocked state and all Set Max
commands shall be accepted.