M58LW032 STMICROELECTRONICS [STMicroelectronics], M58LW032 Datasheet - Page 54

• Manufacturer Part Number: M58LW032
• Description: 32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M58LW032A
Figure 27. Block Protect Flowchart and Pseudo Code
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Read Status Register
Block Address
Block Address
(toggle G or E )
b4, b5 = 1,1
Block Protect
Write FFh
Write 60h
Write 01h
Sucessful
b4 = 1
b7 = 1
b3 = 1
Start
End
NO
NO
YES
NO
YES
YES
YES
NO
Invalid Command
Sequence Error
Block Protect
V PP Invalid
Error
Error
Read Memory Array Command:
– write FFh
while b7 = 1
If b4 = 1, b5 = 1 Invalid Command Sequence
Block Protect Command
– write 60h, Block Adress
– write 01h, Block Adress
do:
– read status register ( toggle G or E,
do not use the Read Status Register command)
If b3 = 1, V PP Invalid Error
If b4 = 1, Block Protect Error
Error
AI06157b