SST55LD019C datasheet(45/79 Pages) SST

45 / 79 page

Data Sheet

ATA Flash Disk Controller

SST55LD019A / SST55LD019B / SST55LD019C

S71241-04-000

12/06

11.2.1.24 Security-Set-Password - F1H

This command requests a transfer of a single sector of data from the host. Table 11-7 defines the

content of the sector of information. The data transferred controls the function of this command.

Table 11-8 defines the interaction of the identifier and security level bits.

Bit ->

76543210

Command (7)

F1H

C/D/H (6)

XDrive

Cyl High (5)

Cyl Low (4)

Sec Num (3)

Sec Cnt (2)

Feature (1)

TABLE11-7:Security Password Data Content

Word

Content

Control Word

Bit 0: Identifier

0: Compare User Password

1: Compare Master Password

Bit 1-15: Reserved

1-16

Password

(32 Bytes)

17-256

Reserved

T11-7.0 1241

TABLE11-8:Identifier and Security Level Bit Interaction

Identifier Level

Command result

User

High

The password supplied with the command is saved as the new User password. The lock

mode will be enabled from the next Power-on or hardware reset. The

ATA Flash Disk

Controller will then be unlocked by either the User password or the previously set Master

password.

User

Maximum The password supplied with the command is saved as the new user password. The Lock

mode will be enabled from the next Power-on reset or hardware reset. The

ATA Flash

Disk Controller will then be unlocked by only the User password. The Master password

previously set is still stored in the

ATA Flash Disk Controller will not be used to unlock

the

ATA Flash Disk Controller.

Master

High or

Maximum

This combination sets a Master password but does not enable or disable the Lock mode.

The security level is not changed.

T11-8.0 1241

SST55LD019C Datasheet(PDF) 45 Page - Silicon Storage Technology, Inc

SST55LD019C Datasheet(HTML) 45 Page - Silicon Storage Technology, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79

Datasheet Download

Link URL