Specifications
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5. THINGS YOU NEED TO KNOW BEFORE PROGRAMMING
5.3.2 How to cancel write protect
When you want to cancel a write protect setting, set the most significant bit of the
address 0000
H to “0”.
The write protect setting is canceled, and the start and end address settings set in
addresses 0000
H to 0003H are made invalid.
Table 5.13 Write Protect Cancellation Method
Address
Bit
Byte
7 6 5 4 3 2 1 0
0000H 0 0 0 0 0 0 0 0 00H
0001H 0 0 0 0 0 0 0 0 00H
0002H 0 0 0 0 0 0 0 0 00H
0003H 0 0 0 0 0 0 0 0 00H