Security Set Password (F1H); Table 111: Security Set Password (F1H); Table 112: Security Set Password Information - Hitachi HTS421212H9AT00 - Travelstar 120 GB Hard Drive Specifications

13.30 Security Set Password (F1h)

Table 111: Security Set Password (F1h)

Command Block Output Registers
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
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 a 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 112: Security Set Password information

Word Description
00 Control Word
bit 0
bit 1-7
bit 8
bit 9-15
01-16 Password (32 bytes)
17-18 Master Password Revision Code (valid if Word0bit 0 = 1)
19-255 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
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - D - - - -
1 1 1 1 0 0 0 1
Error Register
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
Travelstar 4K120 Hard Disk Drive Specification
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
0 7 6
BSY RDY DF DSC DRQ
0 0 V
158
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