Security Set Password (F1H) - IBM DYLA-28100 - Travelstar 8.1 GB Hard Drive Specifications

12.23 Security Set Password (F1h)

C o m m a n d B l o c k O u t p u t R e g i s t e r s
R e g i s t e r
D a t a
F e a t u r e
S e c t o r C o u n t
S e c t o r N u m b e r
C y l i n d e r L o w
C y l i n d e r H i g h
D e v i c e / H e a d
C o m m a n d
E r r o r R e g i s t e r
7 6 5
C R C U N C 0 I D N
0 0 0
Figure 86. Security Set Password Command (F1h)
The Security Set Password command enables 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 next power on reset or hard reset. When the MASTER password is
set by this command, the master password is registerred internally, but the device is N O T 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 Figure 87 on page 134.
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 0
0 A B T T 0 N A M N
0 0 V 0 0
C o m m a n d B l o c k I n p u t R e g i s t e r s
R e g i s t e r 7 6 5 4 3 2 1 0
D a t a
E r r o r . . . S e e B e l o w . . .
S e c t o r C o u n t
S e c t o r N u m b e r
C y l i n d e r L o w
C y l i n d e r H i g h
D e v i c e / H e a d
S t a t u s . . . S e e B e l o w . . .
S t a t u s R e g i s t e r
7 6 5 4 3
B S Y R D Y D F D S C D R Q C O R I D X E R R
0 V 0
Command Descriptions
2 1 0
0 V
133