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14.26
Security Disable Password (F6h)
Command Block Output Registers
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
Error Register
7
6
5
4
CRC UNC
0
IDN
0
0
0
0
Table 92 Security Disable Password Command (F6h)
The Security Disable Password command disables the security mode feature ( device lock function).
The Security Disable Password command requests a transfer of a single sector of data from the host
including information specified in the following table. Then the device checks the transferred
password. If the User Password or Master Password matches the given password, the device disables
the security mode feature (device lock function). This command does not change the Master
Password which may be re-activated later by setting User Password. This command should be
executed in device unlock mode.
Word
Description
00
Control word
bit 0
bit 1-15
01-16
Password
17-255
Reserved
Table 93 Password Information for Security Disable Password command
The device will compare the password sent from this host with that specified in the control word.
Identifier
Zero indicates that the device should check the supplied password against the user password
stored internally. One indicates that the device should check the given password against the
master password stored internally.
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 1 1 1 0 1 1 0
3
2
1
0
0
ABT T0N
AM
N
0
V
0
0
: Identifier (1-Mater, 0-User)
: Reserved
(32 bytes)
Page 121 of 171
5K250 (SATA) OEM Specification
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
Status Register
7
6
5
4
BSY RDY
DF
DSC DRQ COR IDX ERR
0
V
0
V
7 6 5 4 3 2 1 0
- - - - - - - -
...See Below...
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
...See Below...
3
2
1
0
-
0
0
V
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