m58lw032d STMicroelectronics, m58lw032d Datasheet - Page 43

• Manufacturer Part Number: m58lw032d
• Description: 32 Mbit 4mb X8, 2mb X16, Uniform Block 3v Supply Flash Memory
• Manufacturer: STMicroelectronics

Figure 20. Block Protect Flowchart and Pseudo Code
Read Status Register
SR4, SR5 = 1,1
Block Address
Block Address
Block Protect
Write FFh
Write 60h
Write 01h
Sucessful
SR4 = 1
SR7 = 1
SR3 = 1
Start
NO
NO
NO
YES
YES
YES
YES
NO
V PEN Invalid Error
Invalid Command
Sequence Error
Block Protect
Error
If SR4 = 1, SR5 = 1 Invalid Command Sequence
If SR4 = 1, Block Protect Error
If SR3 = 1, V PEN Invalid Error
while SR7 = 1
Block Protect Command
– write 60h, Block Adress
– write 01h, Block Adress
do:
– read status register
Read Memory Array Command:
– write FFh
Error
M58LW032D
AI06157b
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