W49F002U Datasheet, PDF (11/23 Pages) Winbond – 256K X 8 CMOS FLASH MEMORY

W49F002U
Command Codes for Boot Block Lockout Enable
BYTE SEQUENCE
ADDRESS
0 Write
5555H
1 Write
2AAAH
2 Write
5555H
3 Write
5555H
4 Write
2AAAH
5 Write
5555H
Pause TBP
Boot Block Lockout Enable Acquisition Flow
Boot Block Lockout
Feature Set Flow
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data 80
to
address 5555
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data 40
to
address 5555
Pause TBP
Exit
Notes for boot block lockout enable:
Data Format: DQ7−DQ0 (Hex)
Address Format: A14−A0 (Hex)
DATA
AAH
55H
80H
AAH
55H
40H
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Publication Release Date: April 2000
Revision A2