SST85LD0256 datasheet(49/73 Pages) SST

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SST85LD0128 / SST85LD0256 / SST85LD0512

S71319-03-000

2/07

12.2.1.28.4 Set-Max-Unlock

F9H with the content of the Features register equal to 03H.

This command requests a transfer of a single sector of data from the host. Table 12-13 defines the

content of this sector of information.

The password supplied in the sector of data transferred will be compared with the stored Set-Max

password.

If the password compare fails, then the device returns command aborted and decrements the unlock

counter. On the acceptance of the Set-Max-Lock command, this counter is set to a value of five and is

decremented for each password mismatch when Set-Max-Unlock is issued and the device is locked.

When this counter reaches zero, then the Set-Max-Unlock command returns “command aborted” until a

power cycle.

If the password compare matches, then the device transitions to the Set_Max_Unlocked state and all

Set-Max commands will be accepted.

If this command is immediately preceded by a Read-Native-Max-Address command, it will be

interpreted as a Set-Max-Address command.

12.2.1.28.5 Set-Max-Freeze-Lock

F9H with the content of the Features register equal to 04H.

The Set-Max-Freeze-Lock command sets the device to Set_Max_Frozen state. After command

completion any subsequent Set-Max commands are rejected.

Commands disabled by Set-Max-Freeze-Lock are:

- Set-Max-Address

- Set-Max-Set-Password

- Set-Max-Lock

- Set-Max-Unlock

If this command is immediately preceded by a Read-Native-Max-Address command, it will be

interpreted as a Set-Max-Address command.

Bit ->

76543210

Command (7)

F9H

C/D/H (6)

XDrive

N/A

Cyl High (5)

N/A

Cyl Low (4)

N/A

Sec Num (3)

N/A

Sec Cnt (2)

N/A

Feature (1)

03H

Bit ->

76543210

Command (7)

F9H

C/D/H (6)

XDrive

N/A

Cyl High (5)

N/A

Cyl Low (4)

N/A

Sec Num (3)

N/A

Sec Cnt (2)

N/A

Feature (1)

04H

SST85LD0256 Datasheet(PDF) 49 Page - Silicon Storage Technology, Inc

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