w29ee512 Winbond Electronics Corp America, w29ee512 Datasheet - Page 6

• Manufacturer Part Number: w29ee512
• Description: 64k X 8 Cmos Flash Memory
• Manufacturer: Winbond Electronics Corp America

Command Codes for Software Data Protection
Software Data Protection Acquisition Flow
Notes for software program code:
Data Format: DQ7
Address Format: A14
BYTE SEQUENCE
0 Write
1 Write
2 Write
3 Write
4 Write
5 Write
DQ0 (Hex)
(Optional page-load
A0 (Hex)
operation)
TO ENABLE PROTECTION
ADDRESS
2AAAH
5555H
5555H
-
-
-
Software Data Protection
Enable Flow
Sequentially load
up to 128 bytes
address 5555
Pause 10 mS
of page data
Load data AA
address 5555
address 2AAA
Load data A0
Load data 55
Exit
to
to
to
- 6 -
DATA
AAH
A0H
55H
-
-
-
Software Data Protection
Disable Flow
address 5555
Pause 10 mS
Load data AA
address 5555
Load data AA
address 2AAA
address 5555
address 2AAA
address 5555
Load data 80
Load data 20
Load data 55
Load data 55
TO DISABLE PROTECTION
ADDRESS
Exit
to
to
to
2AAAH
2AAAH
to
to
to
5555H
5555H
5555H
5555H
W29EE512
DATA
AAH
AAH
55H
80H
55H
20H