IBM IC35L020 - Deskstar 20 GB Hard Drive - Security Erase Unit (F4 H); Figure 101. Security Erase Unit Command (F4 H)

15.22 Security Erase Unit (F4h)
see below
Status
1 1 1 1 0 1 0 0
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–V0V000V0V000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCCRC
0123456701234567
Status RegisterError Register
Figure 101. Security Erase Unit Command (F4h)
The Security Erase Unit command initializes all user data sectors and then disables the device lock
function.
Note that the Security Erase Unit command initializes from LBA 0 to Native MAX LBA. The Host MAX
LBA set by the Initialize Drive Parameter or the Set MAX Address command is ignored. So the protected
area by the Set MAX Address command is also initialized.
This command requests to transfer a single sector data from the host including information specified in
the following figure.
If the password does not match, the device rejects the command with an Aborted error.
Deskstar 60 GXP Hard disk drive specification
140