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6.18 Security Erase Unit (F4h)
This command requests transfer of a single sector of data from the host. Table 34 defines the content of this
sector of information. If the password does not match the password previously saved by the SSD, the SSD rejects
the command with command aborted. The Security Erase Prepare command shall be completed immediately
prior to the Security Erase Unit command. If the SSD receives a Security Erase Unit command without an
immediately prior Security Erase Prepare command, the SSD aborts the Security Erase Unit command.
Table 36: Security Erase Unit
Task File Register
7
6
5
4
3
2
1
0
COMMAND
F4h
DRIVE/HEAD
1
LBA
1
D
nu
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
nu
nu
nu
nu
nu
6.19 Security Freeze Lock (F5h)
The Security Freeze Lock command sets the SSD to Frozen mode. After command completion, any other
commands that update the SSD Lock mode are rejected. Frozen mode is disabled by power off or hardware
reset. If Security Freeze Lock is issued when the SSD is in Frozen mode, the command executes and the SSD
remains in Frozen mode. After command completion, the Sector Count Register shall be set to 0.
Commands disabled by Security Freeze Lock are:
? Security Set Password
? Security Unlock
? Security Disable Password
? Security Erase Unit
If security mode feature set is not supported, this command shall be handled as Wear Level
command.
Table 37: Security Freeze Lock
Task File Register
7
6
5
4
3
2
1
0
COMMAND
F5h
DRIVE/HEAD
1
LBA
1
D
nu
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
nu
nu
nu
nu
nu
Swissbit AG
Industriestrasse 4-8
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.2
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
X-200_data_sheet_SA-QxBR_Rev12.doc
Page 25 of 47
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