Set Max Freeze Lock (Feature = 04H); Figure 116. Set Max Freeze Lock (F9H) - IBM IC35L020 - Deskstar 20 GB Hard Drive Specifications

15.29.4 Set Max Freeze Lock (Feature = 04h)

Command Block Output
Registers
Register
Data
Feature
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
Error Register
7 6 5
CRC UNC 0
0 0 0

Figure 116. Set Max Freeze Lock (F9h)

If the Set Max Freeze Lock command is immediately preceded by a Read Native Max Address
command, this command is regarded as a Set Max Address command.
The Set Max Freeze Lock command sets the device to Set Max Frozen state. After command completion
any subsequent Set Max commands are rejected. Commands disabled by Set Max Freeze Lock are the
following:
1. Set Max Address
2. Set Max Set PASSWORD
3. Set Max Lock
4. Set Max Unlock
7 6 5 4 3 2 1 0
- - - - - - - -
0 0 0 0 0 1 0 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 D - - - -
1 1 1 1 1 0 0 1
4 3 2 1 0
IDN 0 ABT T0N AMN
0 0 V 0 0
Deskstar 60 GXP Hard disk drive specification
Command Block Input
Registers
Register
Data
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
Status Register
7 6 5 4
BSY RDY DF DSC
0 V 0 –
156
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 D - - - -
see below
3 2 1 0
DRQ COR IDX ERR
– 0 – V