Security Set Password (F1H); Figure 111. Security Set Password Command (F1H) - Hitachi IC25N040ATCS04-0 - Travelstar 40GN 40GB UDMA/100 4200RPM 2MB 2.5" IDE Hard Drive Specifications

13.24 Security Set Password (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

Figure 111. Security Set Password command (F1h)

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
immediately. The device is locked after the next power on reset or hard reset. When the MASTER pass-
word 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 speci-
fied in Figure 112 on page 154.
The data transferred controls the function of this command.
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
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
Command Block Input Registers
Register
Data
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
Status Register
0 7 6 5
BSY RDY DF
0 0 V 0
153
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
4 3 2 1 0
DSC DRQ COR IDX ERR
– – 0 – V