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11.39 Security Erase Prepare (F3h)
Com m and Block Output Registers
Register
7
6
Data
-
-
Feature
-
-
Sector Count
-
-
Sector Number
-
-
Cylinder Low
-
-
Cylinder High
-
-
Device/Head
1
-
Command
1
1
Error Register
7
6
5
4
CRC UNC
0
IDN
0
0
0
0
Table 202 Security Erase Prepare Command (F3h)
The Security Erase Prepare Command must be issued immediately before the Security Erase Unit Command to
enable device erasing and unlocking.
The Security Erase Prepare Command must be issued immediately before the Format Unit Command. This
command is to prevent accidental erasure of the device.
This command does not request to transfer data.
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
D
-
-
-
-
1
1
0
0
1
1
3
2
1
0
0
ABT
T0N AMN
0
V
0
0
Western Digital Hard Disk Drive OEM Specification
Com m and Block Input Registers
Register
7
6
5
Data
-
-
-
...See Below ...
Error
Sector Count
-
-
-
Sector Number
-
-
-
Cylinder Low
-
-
-
Cylinder High
-
-
-
Device/Head
-
-
-
...See Below ...
Status
Status Register
7
6
5
4
BSY RDY
DF
DSC DRQ COR
0
V
0
V
233
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3
2
1
0
IDX
ERR
-
0
-
V
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