AT26DF161 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT26DF161' PDF : 34 Pages View PDF
The tables below detail the various protection and locking states of the device.
Table 9-4. Software Protection Register States
Sector Protection Register
WP
n(1)
X
0
(Don't Care)
1
Sector
n(1)
Unprotected
Protected
Note: 1. “n” represents a sector number
Table 9-5. Hardware and Software Locking
WP SPRL
Locking
SPRL Change Allowed
Sector Protection Registers
0
0
Can be modified from 0 to 1
Unlocked and modifiable using the
Protect and Unprotect Sector
commands. Global Protect and
Unprotect can also be performed.
0
1
Hardware
Locked
Locked
Locked in current state. Protect and
Unprotect Sector commands will be
ignored. Global Protect and
Unprotect cannot be performed.
1
0
Can be modified from 0 to 1
Unlocked and modifiable using the
Protect and Unprotect Sector
commands. Global Protect and
Unprotect can also be performed.
1
1
Software
Locked
Can be modified from 1 to 0
Locked in current state. Protect and
Unprotect Sector commands will be
ignored. Global Protect and
Unprotect cannot be performed.
18 AT26DF161
3599F–DFLASH–09/06
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