IBM IC25N020ATDA04 Hard Drive Specifications - Page 170

Security Freeze Lock F5h, Security Disable Password

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13.24 Security Freeze Lock (F5h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count Sector Number Cylinder Low Cylinder High Device/Head 1 - 1 D - - - - Command 1 1 1 1 0 1 0 1 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count Sector Number Cylinder Low Cylinder High Device/Head Status see below Error Register 76543210 CRC UNC 0 IDN 0 ABT T0N AMN 00000V00 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 - - 0 -V Figure 105. Security Freeze Lock command (F5h) The Security Freeze Lock Command allows the device to enter frozen mode immediately. After this command is completed, the command which updates Security Mode Feature (Device Lock Function) is rejected. Frozen mode is quit only by a Power off. The following commands are rejected when the device is in frozen mode. Refer to Figure 68 on page 92. Ÿ Security Disable Password Ÿ Security Erase Unit Ÿ Security Set Password Ÿ Security Unlock Travelstar 48GH, 30GN & 15GN hard disk drive specifications 156

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13.24 Security Freeze Lock (F5h)
see below
Status
1 1 1 1 0 1 0 1
Command
- - - - - - - -
Device/Head
1 - 1 D - - - -
Device/Head
- - - - - - - -
Cylinder High
- - - - - - - -
Cylinder High
- - - - - - - -
Cylinder Low
- - - - - - - -
Cylinder Low
- - - - - - - -
Sector Number
- - - - - - - -
Sector Number
- - - - - - - -
Sector Count
- - - - - - - -
Sector Count
see below
Error
- - - - - - - -
Feature
- - - - - - - -
Data
- - - - - - - -
Data
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Register
Command Block Input Registers
Command Block Output
Registers
V
-
0
-
-
0
V
0
0
0
V
0
0
0
0
0
ERR
IDX
COR
DRQ
DSC
DF
RDY
BSY
AMN
T0N
ABT
0
IDN
0
UNC
CRC
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Status Register
Error Register
Figure 105. Security Freeze Lock command (F5h)
The Security Freeze Lock Command allows the device to enter frozen mode immediately.
After this command is completed, the command which updates Security Mode Feature (Device Lock
Function) is rejected.
Frozen mode is quit only by a Power off.
The following commands are rejected when the device is in frozen mode. Refer to Figure 68 on page 92.
°
Security Disable Password
°
Security Erase Unit
°
Security Set Password
°
Security Unlock
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
156