Table 124: Security Set Password Command (F1H); Table 125: Security Set Password Information; Security Set Password (F1H) - Hitachi HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive Specifications

12.34 Security Set Password (F1h)

Table 125: Security Set Password command (F1h)
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
The Security Set Password command enables the security mode feature (device lock function) and sets the master
password or the user password.
The security mode feature (device lock function) is enabled by this command and the device is not locked immedi-
ately. The device is locked after the next power on reset or hard reset. When the MASTER password is set by this
command, the master password is registered internally. The device is NOT locked after next power on reset or hard
reset.
This command requests the transfer of a single sector of data from the host including the information specified in
the table below.
The data transferred controls the function of this command.
Table 126: Security Set Password Information
Word Description
00 Control Word
bit 0
bit 1-7
bit 8
bit 9-15
01-16 Password (32 bytes)
17 Master Password Revision Code (valid if Word 0 bit 0 = 1)
18-255 Reserved
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 D - - - -
1 1 1 1 0 0 0 1
4 3 2 1
IDN 0 ABT T0N AMN
0 0 V 0
: Identifier (1-Master, 0-User)
: Reserved
: Security level (1-Maximum, 0-High)
: Reserved
Deskstar T7K500 Hard Disk Drive Specification
Command Block Input Registers
Register
Data
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
0 7 6
BSY RDY DF DSC DRQ
0 0 V
206
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
Status Register
5 4 3 2
COR IDX
0 - - 0
1 0
ERR
- V